21 년 전 · 0932e86305
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				-<h2><span class="refentrytitle">Concept Assignable</span></h2>
			
 
				-<p>Assignable</p>
			
 
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				-<a name="id975234"></a><h2>Description</h2>
			
 
				-<p>Assignable types must have copy constructors,
			
 
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				-    function defined.</p>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id975253"></a><h2>Refinement of</h2>
			
 
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				-<a name="id975359"></a><h2>Models</h2>
			
 
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				-<a name="id975371"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p><a href="CopyConstructible.html" title="Concept CopyConstructible">CopyConstructible</a></p></li></ul></div>
			
 
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				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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				-<h2><span class="refentrytitle">Macro BOOST_ONCE_INIT</span></h2>
			
 
				-<p>BOOST_ONCE_INIT &#8212; The call_once function and
			
 
				-		<code class="computeroutput">once_flag</code> type (statically initialized to 
			
 
				-		<a href="BOOST_ONCE_INIT.html" title="Macro BOOST_ONCE_INIT">BOOST_ONCE_INIT</a>) can be used to run a
			
 
				-		routine exactly once. This can be used to initialize data in a
			
 
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				-		manner.</p>
			
 
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				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">BOOST_ONCE_INIT</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1559796"></a><h2>Description</h2>The implementation-defined macro 
			
 
				-		<a href="BOOST_ONCE_INIT.html" title="Macro BOOST_ONCE_INIT">BOOST_ONCE_INIT</a> is a constant value used to 
			
 
				-		initialize <code class="computeroutput">once_flag</code> instances to indicate that the 
			
 
				-		logically associated routine has not been run yet. See 
			
 
				-		call_once for more details.</div>
			
 
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				-<p>BOOST_TRIBOOL_THIRD_STATE &#8212; Declare a new name for the third state of a tribool. </p>
			
 
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				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id1571265"></a><h2>Description</h2>
			
 
				-<p>Use this macro to declare a new name for the third state of a tribool. This state can have any number of new names (in addition to <code class="computeroutput">indeterminate</code> ), all of which will be equivalent. The new name will be placed in the namespace in which the macro is expanded.</p>
			
 
				-<p>Example: BOOST_TRIBOOL_THIRD_STATE(true_or_false)</p>
			
 
				-<p>tribool x(true_or_false); // potentially set x if (true_or_false(x)) { // don't know what x is } </p>
			
 
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				-<h2><span class="refentrytitle">Macro BOOST_VARIANT_ENUM_PARAMS</span></h2>
			
 
				-<p>BOOST_VARIANT_ENUM_PARAMS &#8212; <p>Enumerate parameters for use with
			
 
				-        <code class="computeroutput"><a href="boost/variant.html" title="Class template variant">variant</a></code>.</p></p>
			
 
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				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">BOOST_VARIANT_ENUM_PARAMS(param)</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1662820"></a><h2>Description</h2>
			
 
				-<p>Expands to a comma-separated sequence of length
			
 
				-        <code class="computeroutput"><a href="BOOST_VARIANT_LIMIT_TYPES.html" title="Macro BOOST_VARIANT_LIMIT_TYPES">BOOST_VARIANT_LIMIT_TYPES</a></code>, where
			
 
				-        each element in the sequence consists of the concatenation of
			
 
				-        <span class="emphasis"><em>param</em></span> with its zero-based index into the
			
 
				-        sequence. That is,
			
 
				-        <code class="computeroutput">param ## 0, param ## 1, ..., param ## BOOST_VARIANT_LIMIT_TYPES - 1</code>.</p>
			
 
				-<p><span class="bold"><strong>Rationale</strong></span>: This macro greatly
			
 
				-        simplifies for the user the process of declaring
			
 
				-        <code class="computeroutput"><a href="boost/variant.html" title="Class template variant">variant</a></code> types
			
 
				-        in function templates or explicit partial specializations of class
			
 
				-        templates, as shown in the
			
 
				-        <a href="variant/tutorial.html#variant.tutorial.preprocessor" title="Preprocessor macros">tutorial</a>.</p>
			
 
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				-<h2><span class="refentrytitle">Macro BOOST_VARIANT_LIMIT_TYPES</span></h2>
			
 
				-<p>BOOST_VARIANT_LIMIT_TYPES &#8212; <p>Expands to the length of the
			
 
				-        template parameter list for
			
 
				-        <code class="computeroutput"><a href="boost/variant.html" title="Class template variant">variant</a></code>.</p></p>
			
 
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				-<a name="id1662761"></a><h2>Description</h2>
			
 
				-<p><span class="bold"><strong>Note</strong></span>: Conforming
			
 
				-        implementations of <code class="computeroutput">variant</code> must allow at least ten
			
 
				-        template arguments. That is, BOOST_VARIANT_LIMIT_TYPES must be greater
			
 
				-        or equal to <code class="computeroutput">10</code>.</p>
			
 
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--- a/doc/html/BidirectionalIterator.html
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				-<h2><span class="refentrytitle">Concept BidirectionalIterator</span></h2>
			
 
				-<p>BidirectionalIterator</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976672"></a><h2>Description</h2>
			
 
				-<p>A bidirectional iterator is an iterator that can read through a sequence
			
 
				-  of values.  It can move in either direction through the sequence, and can
			
 
				-  be either mutable (data pointed to by it can be changed) or not mutable.</p>
			
 
				-<p>An iterator represents a position in a sequence.  Therefore, the
			
 
				-  iterator can point into the sequence (returning a value when dereferenced
			
 
				-  and being incrementable), or be off-the-end (and not dereferenceable or
			
 
				-  incrementable).</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976688"></a><h2>Refinement of</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p><a href="ForwardIterator.html" title="Concept ForwardIterator">ForwardIterator</a></p></li></ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976700"></a><h2>Associated types</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>value_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::value_type</pre>
			
 
				-<p>The value type of the iterator</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>category</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::iterator_category</pre>
			
 
				-<p>The category of the iterator</p>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976740"></a><h2>Notation</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Iter</span></dt>
			
 
				-<dd>A type playing the role of iterator-type in the <a href="BidirectionalIterator.html" title="Concept BidirectionalIterator">BidirectionalIterator</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">i</code>, </span><span class="term"><code class="varname">j</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type Iter</dd>
			
 
				-<dt><span class="term"><code class="varname">x</code></span></dt>
			
 
				-<dd>Object of type value_type</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976778"></a><h2>Type expressions</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Category tag</span></dt>
			
 
				-<dd><p><span class="type">category</span> must be 
			
 
				-                  derived from <span class="type">std::bidirectional_iterator_tag</span>.
			
 
				-                </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976797"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Precondition</th>
			
 
				-<th>Semantics</th>
			
 
				-<th>Postcondition</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Predecrement</p></td>
			
 
				-<td><p>--i</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end) and some dereferenceable iterator <code class="computeroutput">j</code> exists
			
 
				-    such that <code class="computeroutput">i == ++j</code></p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postdecrement</p></td>
			
 
				-<td><p>i--</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Same as for predecrement</p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">{Iter j = i; --i; return j;}</code></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is dereferenceable or
			
 
				-    off-the-end</p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976889"></a><h2>Complexity</h2>
			
 
				-<p>
			
 
				-  All iterator operations must take amortized constant time.
			
 
				-  </p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976896"></a><h2>Invariants</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Predecrement must return object</span></dt>
			
 
				-<dd><p><code class="computeroutput">&amp;i = &amp;(--i)</code></p></dd>
			
 
				-<dt><span class="term">Unique path through sequence</span></dt>
			
 
				-<dd><p><code class="computeroutput">i == j</code> implies <code class="computeroutput">--i == --j</code></p></dd>
			
 
				-<dt><span class="term">Increment and decrement are inverses</span></dt>
			
 
				-<dd><p><code class="computeroutput">++i; --i;</code> and <code class="computeroutput">--i; ++i;</code> must end up with the
			
 
				-  value of <code class="computeroutput">i</code> unmodified, if <code class="computeroutput">i</code> both of the
			
 
				-  operations in the pair are valid.
			
 
				-  </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976958"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><span class="simplelist"><span class="type">T *</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::list&lt;T&gt;::iterator</span></span></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976979"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p><a href="RandomAccessIterator.html" title="Concept RandomAccessIterator">RandomAccessIterator</a></p></li></ul></div>
			
 
				-</div>
			
 
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				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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				-<p>CopyConstructible</p>
			
 
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				-<a name="id977733"></a><h2>Description</h2>
			
 
				-<p>Copy constructible types must be able to be constructed from another
			
 
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				-<a name="id977740"></a><h2>Notation</h2>
			
 
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				-<dd>A type playing the role of copy-constructible-type in the <a href="CopyConstructible.html" title="Concept CopyConstructible">CopyConstructible</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">x</code>, </span><span class="term"><code class="varname">y</code></span>
			
 
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				-<a name="id977771"></a><h2>Valid expressions</h2>
			
 
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				-</tr></thead>
			
 
				-<tbody><tr>
			
 
				-<td><p>Copy construction</p></td>
			
 
				-<td><p>X(x)</p></td>
			
 
				-<td><p><span class="type">X</span></p></td>
			
 
				-<td><p>Require copy constructor.</p></td>
			
 
				-</tr></tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
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				-<a name="id977808"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><span class="simplelist"><span class="type">int</span></span></li></ul></div>
			
 
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				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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				-<p>DefaultConstructible</p>
			
 
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				-<a name="id977635"></a><h2>Description</h2>
			
 
				-<p>DefaultConstructible objects only need to have a default
			
 
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				-<a name="id977642"></a><h2>Notation</h2>
			
 
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				-<dt><span class="term">X</span></dt>
			
 
				-<dd>A type playing the role of default-constructible-type in the <a href="DefaultConstructible.html" title="Concept DefaultConstructible">DefaultConstructible</a> concept.</dd>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id977662"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
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				-<col>
			
 
				-<col>
			
 
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				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Semantics</th>
			
 
				-</tr></thead>
			
 
				-<tbody><tr>
			
 
				-<td><p>Construction</p></td>
			
 
				-<td><p>X()</p></td>
			
 
				-<td><p><span class="type">X</span></p></td>
			
 
				-<td><p>Construct an instance of the type with default parameters.</p></td>
			
 
				-</tr></tbody>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id977698"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><span class="simplelist"><span class="type">int</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::vector&lt;double&gt;</span></span></li>
			
 
				-</ul></div>
			
 
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				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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				-<p>EqualityComparable</p>
			
 
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				-<a name="id977835"></a><h2>Description</h2>
			
 
				-<p>Equality Comparable types must have <code class="computeroutput">==</code> and
			
 
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				-<dt>
			
 
				-<span class="term"><code class="varname">x</code>, </span><span class="term"><code class="varname">y</code></span>
			
 
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				-<a name="id977883"></a><h2>Valid expressions</h2>
			
 
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				-<tr>
			
 
				-<td><p>Equality test</p></td>
			
 
				-<td><p>x == y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Inequality test</p></td>
			
 
				-<td><p>x != y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id977929"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><span class="simplelist"><span class="type">int</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::vector&lt;int&gt;</span></span></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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				-<h2><span class="refentrytitle">Struct template FinderConcept</span></h2>
			
 
				-<p>boost::algorithm::FinderConcept &#8212; Finder concept. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> FinderT, <span class="bold"><strong>typename</strong></span> IteratorT&gt; 
			
 
				-<span class="bold"><strong>struct</strong></span> FinderConcept {
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="FinderConcept.html#id1000634-bb">public member functions</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="FinderConcept.html#id1069871-bb">constraints</a>() ;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1315117"></a><h2>Description</h2>
			
 
				-<p>Defines the Finder concept. Finder is a functor which selects an arbitrary part of a string. Search is performed on the range specified by starting and ending iterators.</p>
			
 
				-<p>Result of the find operation must be convertible to iterator_range. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1315129"></a><h3>
			
 
				-<a name="id1000634-bb"></a><code class="computeroutput">FinderConcept</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id1069871-bb"></a>constraints() ;</pre></li></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
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				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-<h2><span class="refentrytitle">Struct template FormatterConcept</span></h2>
			
 
				-<p>boost::algorithm::FormatterConcept &#8212; Formatter concept. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> FormatterT, <span class="bold"><strong>typename</strong></span> FinderT, <span class="bold"><strong>typename</strong></span> IteratorT&gt; 
			
 
				-<span class="bold"><strong>struct</strong></span> FormatterConcept {
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="FormatterConcept.html#id801912-bb">public member functions</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="FormatterConcept.html#id768658-bb">constraints</a>() ;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1315246"></a><h2>Description</h2>
			
 
				-<p>Defines the Formatter concept. Formatter is a functor, which takes a result from a finder operation and transforms it in a specific way.</p>
			
 
				-<p>Result must be a container supported by container_traits, or a reference to it. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1315257"></a><h3>
			
 
				-<a name="id801912-bb"></a><code class="computeroutput">FormatterConcept</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id768658-bb"></a>constraints() ;</pre></li></ol></div>
			
 
				-</div>
			
 
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				-<p>ForwardIterator</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976320"></a><h2>Description</h2>
			
 
				-<p>A forward iterator is an iterator that can read through a sequence of
			
 
				-  values.  It is multi-pass (old values of the iterator can be
			
 
				-  re-used), and can be either mutable (data pointed to by it can be
			
 
				-  changed) or not mutable.</p>
			
 
				-<p>An iterator represents a position in a sequence.  Therefore, the
			
 
				-  iterator can point into the sequence (returning a value when dereferenced
			
 
				-  and being incrementable), or be off-the-end (and not dereferenceable or
			
 
				-  incrementable).</p>
			
 
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				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p><a href="InputIterator.html" title="Concept InputIterator">InputIterator</a></p></li>
			
 
				-<li><p><a href="OutputIterator.html" title="Concept OutputIterator">OutputIterator</a></p></li>
			
 
				-</ul></div>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id976355"></a><h2>Associated types</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>value_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::value_type</pre>
			
 
				-<p>The value type of the iterator</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>category</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::iterator_category</pre>
			
 
				-<p>The category of the iterator</p>
			
 
				-</li>
			
 
				-</ul></div>
			
 
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				-<div class="refsect1" lang="en">
			
 
				-<a name="id976395"></a><h2>Notation</h2>
			
 
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				-<dt><span class="term">Iter</span></dt>
			
 
				-<dd>A type playing the role of iterator-type in the <a href="ForwardIterator.html" title="Concept ForwardIterator">ForwardIterator</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">i</code>, </span><span class="term"><code class="varname">j</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type Iter</dd>
			
 
				-<dt><span class="term"><code class="varname">x</code></span></dt>
			
 
				-<dd>Object of type value_type</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976433"></a><h2>Type expressions</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Category tag</span></dt>
			
 
				-<dd><p><span class="type">category</span> must be 
			
 
				-                  derived from <span class="type">std::forward_iterator_tag</span>.
			
 
				-                </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976452"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Precondition</th>
			
 
				-<th>Semantics</th>
			
 
				-<th>Postcondition</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Dereference</p></td>
			
 
				-<td><p>*i</p></td>
			
 
				-<td><p><span class="type">const-if-not-mutable value_type &amp;</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Member access</p></td>
			
 
				-<td><p>i-&gt;{member-name} (return type is pointer-to-object type)</p></td>
			
 
				-<td><p><span class="type">const-if-not-mutable value_type *</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Preincrement</p></td>
			
 
				-<td><p>++i</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postincrement</p></td>
			
 
				-<td><p>i++</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">{Iter j = i; ++i; return j;}</code></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is dereferenceable or
			
 
				-    off-the-end</p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976586"></a><h2>Complexity</h2>
			
 
				-<p>
			
 
				-  All iterator operations must take amortized constant time.
			
 
				-  </p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976593"></a><h2>Invariants</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Predecrement must return object</span></dt>
			
 
				-<dd><p><code class="computeroutput">&amp;i = &amp;(++i)</code></p></dd>
			
 
				-<dt><span class="term">Unique path through sequence</span></dt>
			
 
				-<dd><p><code class="computeroutput">i == j</code> implies <code class="computeroutput">++i == ++j</code></p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976624"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><span class="simplelist"><span class="type">T *</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::hash_set&lt;T&gt;::iterator</span></span></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976644"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p><a href="BidirectionalIterator.html" title="Concept BidirectionalIterator">BidirectionalIterator</a></p></li></ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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				-</div>
			
 
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				-</html>
			
--- a/doc/html/InputIterator.html
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				-<html>
			
 
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				-<title>Concept InputIterator</title>
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="InputIterator"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Concept InputIterator</span></h2>
			
 
				-<p>InputIterator</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975397"></a><h2>Description</h2>
			
 
				-<p>An input iterator is an iterator that can read through a sequence of
			
 
				-  values.  It is single-pass (old values of the iterator cannot be
			
 
				-  re-used), and read-only.</p>
			
 
				-<p>An input iterator represents a position in a sequence.  Therefore, the
			
 
				-  iterator can point into the sequence (returning a value when dereferenced
			
 
				-  and being incrementable), or be off-the-end (and not dereferenceable or
			
 
				-  incrementable).</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975412"></a><h2>Refinement of</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p><a href="Assignable.html" title="Concept Assignable">Assignable</a></p></li>
			
 
				-<li><p><a href="DefaultConstructible.html" title="Concept DefaultConstructible">DefaultConstructible</a></p></li>
			
 
				-<li><p><a href="EqualityComparable.html" title="Concept EqualityComparable">EqualityComparable</a></p></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975441"></a><h2>Associated types</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>value_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::value_type</pre>
			
 
				-<p>The value type of the iterator (not necessarily what
			
 
				-    <code class="computeroutput">*i</code> returns)</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>difference_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::difference_type</pre>
			
 
				-<p>The difference type of the iterator</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>category</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::iterator_category</pre>
			
 
				-<p>The category of the iterator</p>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975504"></a><h2>Notation</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Iter</span></dt>
			
 
				-<dd>A type playing the role of iterator-type in the <a href="InputIterator.html" title="Concept InputIterator">InputIterator</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">i</code>, </span><span class="term"><code class="varname">j</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type Iter</dd>
			
 
				-<dt><span class="term"><code class="varname">x</code></span></dt>
			
 
				-<dd>Object of type value_type</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975542"></a><h2>Type expressions</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Category tag</span></dt>
			
 
				-<dd><p><span class="type">category</span> must be 
			
 
				-                  derived from <span class="type">std::input_iterator_tag</span>,  a model  of <a href="DefaultConstructible.html" title="Concept DefaultConstructible">DefaultConstructible</a>,  and  a model  of <a href="CopyConstructible.html" title="Concept CopyConstructible">CopyConstructible</a>.
			
 
				-                </p></dd>
			
 
				-<dt><span class="term">Value type copy constructibility</span></dt>
			
 
				-<dd><p><span class="type">value_type</span> must be 
			
 
				-                   a model  of <a href="CopyConstructible.html" title="Concept CopyConstructible">CopyConstructible</a>.
			
 
				-                </p></dd>
			
 
				-<dt><span class="term">Difference type properties</span></dt>
			
 
				-<dd><p><span class="type">difference_type</span> must be 
			
 
				-                   a model  of <a href="SignedInteger.html" title="Concept SignedInteger">SignedInteger</a>.
			
 
				-                </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975612"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Precondition</th>
			
 
				-<th>Semantics</th>
			
 
				-<th>Postcondition</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Dereference</p></td>
			
 
				-<td><p>*i</p></td>
			
 
				-<td><p>Convertible to <span class="type">value_type</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Preincrement</p></td>
			
 
				-<td><p>++i</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postincrement</p></td>
			
 
				-<td><p>i++</p></td>
			
 
				-<td><p></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">(void)(++i)</code></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is dereferenceable or
			
 
				-    off-the-end</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postincrement and dereference</p></td>
			
 
				-<td><p>*i++</p></td>
			
 
				-<td><p>Convertible to <span class="type">value_type</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">{value_type t = *i; ++i; return t;}</code></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is dereferenceable or
			
 
				-    off-the-end</p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975758"></a><h2>Complexity</h2>
			
 
				-<p>
			
 
				-  All iterator operations must take amortized constant time.
			
 
				-  </p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975765"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><span class="simplelist"><span class="type">std::istream_iterator</span></span></li></ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975777"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p><a href="DefaultConstructible.html" title="Concept DefaultConstructible">DefaultConstructible</a></p></li>
			
 
				-<li><p><a href="EqualityComparable.html" title="Concept EqualityComparable">EqualityComparable</a></p></li>
			
 
				-<li><p><a href="ForwardIterator.html" title="Concept ForwardIterator">ForwardIterator</a></p></li>
			
 
				-<li><p><a href="OutputIterator.html" title="Concept OutputIterator">OutputIterator</a></p></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
				-</tr></table>
			
 
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				-</div>
			
 
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				-</html>
			
--- a/doc/html/LessThanComparable.html
+++ b/doc/html/LessThanComparable.html
@@ -1,105 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Concept LessThanComparable</title>
			
 
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				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
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				-<h2><span class="refentrytitle">Concept LessThanComparable</span></h2>
			
 
				-<p>LessThanComparable</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977964"></a><h2>Description</h2>
			
 
				-<p>LessThanComparable types must have <code class="computeroutput">&lt;</code>,
			
 
				-  <code class="computeroutput">&gt;</code>, <code class="computeroutput">&lt;=</code>, and <code class="computeroutput">&gt;=</code>
			
 
				-  operators.</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977993"></a><h2>Notation</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">X</span></dt>
			
 
				-<dd>A type playing the role of comparable-type in the <a href="LessThanComparable.html" title="Concept LessThanComparable">LessThanComparable</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">x</code>, </span><span class="term"><code class="varname">y</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type X</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id978024"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Semantics</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Less than</p></td>
			
 
				-<td><p>x &lt; y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-<td><p>Determine if one value is less than another.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Less than or equal</p></td>
			
 
				-<td><p>x &lt;= y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-<td><p>Determine if one value is less than or equal to another.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater than</p></td>
			
 
				-<td><p>x &gt; y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-<td><p>Determine if one value is greater than another.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater than or equal to</p></td>
			
 
				-<td><p>x &gt;= y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-<td><p>Determine if one value is greater than or equal to another.</p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id978117"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><span class="simplelist"><span class="type">int</span></span></li></ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
				-</tr></table>
			
 
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				-<a accesskey="p" href="EqualityComparable.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="concepts/reference.html"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="SignedInteger.html"><img src="images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/OutputIterator.html
+++ b/doc/html/OutputIterator.html
@@ -1,200 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="OutputIterator"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Concept OutputIterator</span></h2>
			
 
				-<p>OutputIterator</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975829"></a><h2>Description</h2>
			
 
				-<p>An output iterator is an iterator that can write a sequence of
			
 
				-  values.  It is single-pass (old values of the iterator cannot be
			
 
				-  re-used), and write-only.</p>
			
 
				-<p>An output iterator represents a position in a (possibly infinite)
			
 
				-  sequence.  Therefore, the iterator can point into the sequence (returning
			
 
				-  a value when dereferenced and being incrementable), or be off-the-end
			
 
				-  (and not dereferenceable or incrementable).</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975844"></a><h2>Associated types</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>value_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::value_type</pre>
			
 
				-<p>The stated value type of the iterator (should be
			
 
				-    <code class="computeroutput">void</code> for an output iterator that does not model some other
			
 
				-    iterator concept).</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>difference_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::difference_type</pre>
			
 
				-<p>The difference type of the iterator</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>category</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::iterator_category</pre>
			
 
				-<p>The category of the iterator</p>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975908"></a><h2>Notation</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Iter</span></dt>
			
 
				-<dd>A type playing the role of iterator-type in the <a href="OutputIterator.html" title="Concept OutputIterator">OutputIterator</a> concept.</dd>
			
 
				-<dt><span class="term">ValueType</span></dt>
			
 
				-<dd>A type playing the role of value-type in the <a href="OutputIterator.html" title="Concept OutputIterator">OutputIterator</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">i</code>, </span><span class="term"><code class="varname">j</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type Iter</dd>
			
 
				-<dt><span class="term"><code class="varname">x</code></span></dt>
			
 
				-<dd>Object of type ValueType</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id975960"></a><h2>Type expressions</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term"></span></dt>
			
 
				-<dd><p>The type <span class="type">Iter</span> must be a model of <a href="Assignable.html" title="Concept Assignable">Assignable</a>.</p></dd>
			
 
				-<dt><span class="term"></span></dt>
			
 
				-<dd><p>The type <span class="type">ValueType</span> must be a model of <a href="Assignable.html" title="Concept Assignable">Assignable</a>.</p></dd>
			
 
				-<dt><span class="term"></span></dt>
			
 
				-<dd><p>The type <span class="type">Iter</span> must be a model of <a href="DefaultConstructible.html" title="Concept DefaultConstructible">DefaultConstructible</a>.</p></dd>
			
 
				-<dt><span class="term"></span></dt>
			
 
				-<dd><p>The type <span class="type">Iter</span> must be a model of
			
 
				-  <a href="EqualityComparable.html" title="Concept EqualityComparable">EqualityComparable</a>.</p></dd>
			
 
				-<dt><span class="term">Category tag</span></dt>
			
 
				-<dd><p><span class="type">category</span> must be 
			
 
				-                  derived from <span class="type">std::output_iterator_tag</span>,  a model  of <a href="DefaultConstructible.html" title="Concept DefaultConstructible">DefaultConstructible</a>,  and  a model  of <a href="CopyConstructible.html" title="Concept CopyConstructible">CopyConstructible</a>.
			
 
				-                </p></dd>
			
 
				-<dt><span class="term">Difference type properties</span></dt>
			
 
				-<dd><p><span class="type">difference_type</span> must be 
			
 
				-                   a model  of <a href="SignedInteger.html" title="Concept SignedInteger">SignedInteger</a>.
			
 
				-                </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976078"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Precondition</th>
			
 
				-<th>Semantics</th>
			
 
				-<th>Postcondition</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Dereference</p></td>
			
 
				-<td><p>*i</p></td>
			
 
				-<td><p></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Dereference and assign</p></td>
			
 
				-<td><p>*i = x</p></td>
			
 
				-<td><p></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td><p><code class="computeroutput">*i</code> may not be written to again until it has
			
 
				-    been incremented.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Preincrement</p></td>
			
 
				-<td><p>++i</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td> </td>
			
 
				-<td> </td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postincrement</p></td>
			
 
				-<td><p>i++</p></td>
			
 
				-<td><p></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">(void)(++i)</code></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is dereferenceable or
			
 
				-    off-the-end</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postincrement, dereference, and assign</p></td>
			
 
				-<td><p>*i++ = x</p></td>
			
 
				-<td><p></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is incrementable (not
			
 
				-    off-the-end)</p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">{*i = t; ++i;}</code></p></td>
			
 
				-<td><p><code class="computeroutput">i</code> is dereferenceable or
			
 
				-    off-the-end</p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976245"></a><h2>Complexity</h2>
			
 
				-<p>
			
 
				-  All iterator operations must take amortized constant time.
			
 
				-  </p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976252"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><span class="simplelist"><span class="type">std::ostream_iterator</span>, <span class="type">...</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::insert_iterator</span>, <span class="type">...</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::front_insert_iterator</span>, <span class="type">...</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::back_insert_iterator</span>, <span class="type">...</span></span></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id976301"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"></ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
				-</tr></table>
			
 
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				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/RandomAccessIterator.html
+++ b/doc/html/RandomAccessIterator.html
@@ -1,230 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Concept RandomAccessIterator</title>
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="RandomAccessIterator"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Concept RandomAccessIterator</span></h2>
			
 
				-<p>RandomAccessIterator</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977006"></a><h2>Description</h2>
			
 
				-<p>A random access iterator is an iterator that can read through
			
 
				-  a sequence of values.  It can move in either direction through the
			
 
				-  sequence (by any amount in constant time), and can be either mutable
			
 
				-  (data pointed to by it can be changed) or not mutable.</p>
			
 
				-<p>An iterator represents a position in a sequence.  Therefore,
			
 
				-  the iterator can point into the sequence (returning a value when
			
 
				-  dereferenced and being incrementable), or be off-the-end (and not
			
 
				-  dereferenceable or incrementable).</p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977022"></a><h2>Refinement of</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p><a href="BidirectionalIterator.html" title="Concept BidirectionalIterator">BidirectionalIterator</a></p></li>
			
 
				-<li><p><a href="LessThanComparable.html" title="Concept LessThanComparable">LessThanComparable</a></p></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977044"></a><h2>Associated types</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>value_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::value_type</pre>
			
 
				-<p>The value type of the iterator</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>category</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::iterator_category</pre>
			
 
				-<p>The category of the iterator</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="bold"><strong>difference_type</strong></span></p>
			
 
				-<pre class="literallayout">std::iterator_traits&lt;Iter&gt;::difference_type</pre>
			
 
				-<p>The difference type of the iterator (measure of the number
			
 
				-    of steps between two iterators)</p>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977101"></a><h2>Notation</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Iter</span></dt>
			
 
				-<dd>A type playing the role of iterator-type in the <a href="RandomAccessIterator.html" title="Concept RandomAccessIterator">RandomAccessIterator</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">i</code>, </span><span class="term"><code class="varname">j</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type Iter</dd>
			
 
				-<dt><span class="term"><code class="varname">x</code></span></dt>
			
 
				-<dd>Object of type value_type</dd>
			
 
				-<dt><span class="term"><code class="varname">n</code></span></dt>
			
 
				-<dd>Object of type difference_type</dd>
			
 
				-<dt><span class="term"><code class="varname">int_off</code></span></dt>
			
 
				-<dd>Object of type int</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977156"></a><h2>Type expressions</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Category tag</span></dt>
			
 
				-<dd><p><span class="type">category</span> must be 
			
 
				-                  derived from <span class="type">std::random_access_iterator_tag</span>.
			
 
				-                </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977175"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-<th>Semantics</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Motion</p></td>
			
 
				-<td><p>i += n</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p>Equivalent to applying <code class="computeroutput">i++</code><code class="computeroutput">n</code> times
			
 
				-    if <code class="computeroutput">n</code> is positive, applying <code class="computeroutput">i--</code><code class="computeroutput">-n</code> times if <code class="computeroutput">n</code> is negative, and to a null
			
 
				-    operation if <code class="computeroutput">n</code> is zero.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Motion (with integer offset)</p></td>
			
 
				-<td><p>i += int_off</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p>Equivalent to applying <code class="computeroutput">i++</code><code class="computeroutput">n</code> times
			
 
				-    if <code class="computeroutput">n</code> is positive, applying <code class="computeroutput">i--</code><code class="computeroutput">-n</code> times if <code class="computeroutput">n</code> is negative, and to a null
			
 
				-    operation if <code class="computeroutput">n</code> is zero.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Subtractive motion</p></td>
			
 
				-<td><p>i -= n</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">i+=(-n)</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Subtractive motion (with integer offset)</p></td>
			
 
				-<td><p>i -= int_off</p></td>
			
 
				-<td><p><span class="type">Iter &amp;</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">i+=(-n)</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Addition</p></td>
			
 
				-<td><p>i + n</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">{Iter j = i; j += n; return j;}</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Addition with integer</p></td>
			
 
				-<td><p>i + int_off</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">{Iter j = i; j += n; return j;}</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Addition (count first)</p></td>
			
 
				-<td><p>n + i</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">i + n</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Addition with integer (count first)</p></td>
			
 
				-<td><p>int_off + i</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">i + n</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Subtraction</p></td>
			
 
				-<td><p>i - n</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">i + (-n)</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Subtraction with integer</p></td>
			
 
				-<td><p>i - int_off</p></td>
			
 
				-<td><p><span class="type">Iter</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">i + (-n)</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Distance</p></td>
			
 
				-<td><p>i - j</p></td>
			
 
				-<td><p><span class="type">difference_type</span></p></td>
			
 
				-<td><p>The number of times <code class="computeroutput">i</code> must be incremented (or
			
 
				-    decremented if the result is negative) to reach <code class="computeroutput">j</code>.  Not
			
 
				-    defined if <code class="computeroutput">j</code> is not reachable from
			
 
				-    <code class="computeroutput">i</code>.</p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Element access</p></td>
			
 
				-<td><p>i[n]</p></td>
			
 
				-<td><p><span class="type">const-if-not-mutable value_type &amp;</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">*(i + n)</code></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Element access with integer index</p></td>
			
 
				-<td><p>i[int_off]</p></td>
			
 
				-<td><p><span class="type">const-if-not-mutable value_type &amp;</span></p></td>
			
 
				-<td><p>Equivalent to <code class="computeroutput">*(i + n)</code></p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977554"></a><h2>Complexity</h2>
			
 
				-<p>
			
 
				-  All iterator operations must take amortized constant time.
			
 
				-  </p>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977561"></a><h2>Models</h2>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><span class="simplelist"><span class="type">T *</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::vector&lt;T&gt;::iterator</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::vector&lt;T&gt;::const_iterator</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::deque&lt;T&gt;::iterator</span></span></li>
			
 
				-<li><span class="simplelist"><span class="type">std::deque&lt;T&gt;::const_iterator</span></span></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id977608"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p><a href="LessThanComparable.html" title="Concept LessThanComparable">LessThanComparable</a></p></li></ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
				-</tr></table>
			
 
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				-<h2><span class="refentrytitle">Concept SignedInteger</span></h2>
			
 
				-<p>SignedInteger</p>
			
 
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				-<a name="id978189"></a><h2>Notation</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">T</span></dt>
			
 
				-<dd>A type playing the role of integral-type in the <a href="SignedInteger.html" title="Concept SignedInteger">SignedInteger</a> concept.</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">x</code>, </span><span class="term"><code class="varname">y</code>, </span><span class="term"><code class="varname">z</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type T</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="varname">a</code>, </span><span class="term"><code class="varname">b</code></span>
			
 
				-</dt>
			
 
				-<dd>Objects of type int</dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id978234"></a><h2>Type expressions</h2>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term">Conversion to int</span></dt>
			
 
				-<dd><p><span class="type">T</span> must be 
			
 
				-                  convertible to <span class="type">int</span>.
			
 
				-                </p></dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id978253"></a><h2>Valid expressions</h2>
			
 
				-<div class="informaltable"><table class="table">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Name</th>
			
 
				-<th>Expression</th>
			
 
				-<th>Type</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><p>Conversion from int</p></td>
			
 
				-<td><p>T(a)</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Preincrement</p></td>
			
 
				-<td><p>++x</p></td>
			
 
				-<td><p><span class="type">T &amp;</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Predecrement</p></td>
			
 
				-<td><p>--x</p></td>
			
 
				-<td><p><span class="type">T &amp;</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postincrement</p></td>
			
 
				-<td><p>x++</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Postdecrement</p></td>
			
 
				-<td><p>x--</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Sum</p></td>
			
 
				-<td><p>x + y</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Sum with int</p></td>
			
 
				-<td><p>x + a</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Sum-assignment</p></td>
			
 
				-<td><p>x += y</p></td>
			
 
				-<td><p><span class="type">T &amp;</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Sum-assignment with int</p></td>
			
 
				-<td><p>x += a</p></td>
			
 
				-<td><p><span class="type">T &amp;</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Difference</p></td>
			
 
				-<td><p>x - y</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Difference with int</p></td>
			
 
				-<td><p>x - a</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Product</p></td>
			
 
				-<td><p>x * y</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Product with int</p></td>
			
 
				-<td><p>x * a</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Product-assignment with int</p></td>
			
 
				-<td><p>x *= a</p></td>
			
 
				-<td><p><span class="type">T &amp;</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Product with int on left</p></td>
			
 
				-<td><p>a * x</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Quotient</p></td>
			
 
				-<td><p>x / y</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Quotient with int</p></td>
			
 
				-<td><p>x / a</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Right-shift</p></td>
			
 
				-<td><p>x &gt;&gt; y</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Right-shift with int</p></td>
			
 
				-<td><p>x &gt;&gt; a</p></td>
			
 
				-<td><p><span class="type">T</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Right-shift-assignment with int</p></td>
			
 
				-<td><p>x &gt;&gt;= a</p></td>
			
 
				-<td><p><span class="type">T &amp;</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Less-than comparison</p></td>
			
 
				-<td><p>x &lt; y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Less-than comparison with int</p></td>
			
 
				-<td><p>x &lt; a</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Less-than comparison with size_t</p></td>
			
 
				-<td><p>x &lt; boost::sample_value &lt; std::size_t &gt;()</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater-than comparison</p></td>
			
 
				-<td><p>x &gt; y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater-than comparison with int</p></td>
			
 
				-<td><p>x &gt; a</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Less-than-or-equal comparison</p></td>
			
 
				-<td><p>x &lt;= y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Less-than-or-equal comparison with int</p></td>
			
 
				-<td><p>x &lt;= a</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater-than-or-equal comparison</p></td>
			
 
				-<td><p>x &gt;= y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater-than-or-equal comparison with int</p></td>
			
 
				-<td><p>x &gt;= a</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Greater-than-or-equal comparison with int on left</p></td>
			
 
				-<td><p>a &gt;= x</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Equality comparison</p></td>
			
 
				-<td><p>x == y</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><p>Equality comparison with int</p></td>
			
 
				-<td><p>x == a</p></td>
			
 
				-<td><p>Convertible to <span class="type">bool</span></p></td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table></div>
			
 
				-</div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id996168"></a><h2>See also</h2>
			
 
				-<div class="itemizedlist"><ul type="disc"></ul></div>
			
 
				-</div>
			
 
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				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001, 2002 Indiana University<br>Copyright © 2000, 2001 University of Notre Dame du Lac<br>Copyright © 2000 Jeremy Siek, Lie-Quan Lee, Andrew Lumsdaine<br>Copyright © 1996-1999 Silicon Graphics Computer Systems, Inc.<br>Copyright © 1994 Hewlett-Packard Company</small></td>
			
 
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--- a/doc/html/abstract_variables_map.html
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				-<h2><span class="refentrytitle">Class abstract_variables_map</span></h2>
			
 
				-<p>boost::program_options::abstract_variables_map &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> abstract_variables_map {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="abstract_variables_map.html#abstract_variables_mapconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="abstract_variables_map.html#id1115586-bb">abstract_variables_map</a>();
			
 
				-  <a href="abstract_variables_map.html#id1115588-bb">abstract_variables_map</a>(<span class="bold"><strong>const</strong></span> <a href="abstract_variables_map.html" title="Class abstract_variables_map">abstract_variables_map</a> *);
			
 
				-  <a href="abstract_variables_map.html#id1118289-bb">~abstract_variables_map</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="abstract_variables_map.html#id1136283-bb">public member functions</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span>  <a href="variable_value.html" title="Class variable_value">variable_value</a> &amp;</span> <a href="abstract_variables_map.html#id1136288-bb"><span class="bold"><strong>operator</strong></span>[]</a>(<span class="bold"><strong>const</strong></span> std::string &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="abstract_variables_map.html#id1115549-bb">next</a>(<a href="abstract_variables_map.html" title="Class abstract_variables_map">abstract_variables_map</a> *) ;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="abstract_variables_map.html#id1118292-bb">private member functions</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>const</strong></span>  <a href="variable_value.html" title="Class variable_value">variable_value</a> &amp;</span> <a href="abstract_variables_map.html#id1118297-bb">get</a>(<span class="bold"><strong>const</strong></span> std::string &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1277263"></a><h2>Description</h2>
			
 
				-<p>Implements string-&gt;string mapping with convenient value casting facilities. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1277273"></a><h3>
			
 
				-<a name="abstract_variables_mapconstruct-copy-destruct"></a><code class="computeroutput">abstract_variables_map</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id1115586-bb"></a>abstract_variables_map();</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id1115588-bb"></a>abstract_variables_map(<span class="bold"><strong>const</strong></span> <a href="abstract_variables_map.html" title="Class abstract_variables_map">abstract_variables_map</a> * next);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id1118289-bb"></a>~abstract_variables_map();</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1277346"></a><h3>
			
 
				-<a name="id1136283-bb"></a><code class="computeroutput">abstract_variables_map</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span>  <a href="variable_value.html" title="Class variable_value">variable_value</a> &amp;</span> <a name="id1136288-bb"></a><span class="bold"><strong>operator</strong></span>[](<span class="bold"><strong>const</strong></span> std::string &amp; name) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p>Obtains the value of variable 'name', from *this and possibly from the chain of variable maps.</p>
			
 
				-<div class="itemizedlist"><ul type="disc"><li>
			
 
				-<p>if there's no value in *this.</p>
			
 
				-<div class="itemizedlist"><ul type="circle">
			
 
				-<li><p>if there's next variable map, returns value from it</p></li>
			
 
				-<li><p>otherwise, returns empty value</p></li>
			
 
				-</ul></div>
			
 
				-</li></ul></div>
			
 
				-<div class="itemizedlist"><ul type="disc"><li>
			
 
				-<p>if there's defaulted value</p>
			
 
				-<div class="itemizedlist"><ul type="circle">
			
 
				-<li><p>if there's next varaible map, which has a non-defauled value, return that</p></li>
			
 
				-<li><p>otherwise, return value from *this</p></li>
			
 
				-</ul></div>
			
 
				-</li></ul></div>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p>if there's a non-defauled value, returns it. </p></li></ul></div>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id1115549-bb"></a>next(<a href="abstract_variables_map.html" title="Class abstract_variables_map">abstract_variables_map</a> * next) ;</pre>
			
 
				-<p>Sets next variable map, which will be used to find variables not found in *this. </p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1277481"></a><h3>
			
 
				-<a name="id1118292-bb"></a><code class="computeroutput">abstract_variables_map</code> private member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>const</strong></span>  <a href="variable_value.html" title="Class variable_value">variable_value</a> &amp;</span> <a name="id1118297-bb"></a>get(<span class="bold"><strong>const</strong></span> std::string &amp; name) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p>Returns value of variable 'name' stored in *this, or empty value otherwise. </p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002-2004 Vladimir Prus</small></td>
			
 
				-</tr></table>
			
 
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				-<h2><span class="refentrytitle">Struct template acst_dst_trait</span></h2>
			
 
				-<p>boost::date_time::acst_dst_trait &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> date_type&gt; 
			
 
				-<span class="bold"><strong>struct</strong></span> acst_dst_trait {
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> date_type::day_of_week_type                day_of_week_type;  
			
 
				-  <span class="bold"><strong>typedef</strong></span> date_type::month_type                      month_type;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> <a href="last_kday_of_month.html" title="Class template last_kday_of_month">date_time::last_kday_of_month</a>&lt; date_type &gt; start_rule_functor;
			
 
				-  <span class="bold"><strong>typedef</strong></span> <a href="last_kday_of_month.html" title="Class template last_kday_of_month">date_time::last_kday_of_month</a>&lt; date_type &gt; end_rule_functor;  
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="acst_dst_trait.html#id825387-bb">public static functions</a></em></span>
			
 
				-  <span class="type">day_of_week_type</span> <a href="acst_dst_trait.html#id825392-bb">start_day</a>() ;
			
 
				-  <span class="type">month_type</span> <a href="acst_dst_trait.html#id1107969-bb">start_month</a>() ;
			
 
				-  <span class="type">day_of_week_type</span> <a href="acst_dst_trait.html#id893157-bb">end_day</a>() ;
			
 
				-  <span class="type">month_type</span> <a href="acst_dst_trait.html#id936154-bb">end_month</a>() ;
			
 
				-  <span class="type"><span class="bold"><strong>int</strong></span></span> <a href="acst_dst_trait.html#id936167-bb">dst_start_offset_minutes</a>() ;
			
 
				-  <span class="type"><span class="bold"><strong>int</strong></span></span> <a href="acst_dst_trait.html#id832605-bb">dst_end_offset_minutes</a>() ;
			
 
				-  <span class="type"><span class="bold"><strong>int</strong></span></span> <a href="acst_dst_trait.html#id966084-bb">dst_shift_length_minutes</a>() ;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1110273"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1110276"></a><h3>
			
 
				-<a name="id825387-bb"></a><code class="computeroutput">acst_dst_trait</code> public static functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><span class="type">day_of_week_type</span> <a name="id825392-bb"></a>start_day() ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">month_type</span> <a name="id1107969-bb"></a>start_month() ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">day_of_week_type</span> <a name="id893157-bb"></a>end_day() ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">month_type</span> <a name="id936154-bb"></a>end_month() ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>int</strong></span></span> <a name="id936167-bb"></a>dst_start_offset_minutes() ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>int</strong></span></span> <a name="id832605-bb"></a>dst_end_offset_minutes() ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>int</strong></span></span> <a name="id966084-bb"></a>dst_shift_length_minutes() ;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
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				-<h2><span class="refentrytitle">Function template all</span></h2>
			
 
				-<p>boost::algorithm::all &#8212; 'All' predicate </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> RangeT, <span class="bold"><strong>typename</strong></span> PredicateT&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> all(<span class="bold"><strong>const</strong></span> RangeT &amp; Input, PredicateT Pred);</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1327677"></a><h2>Description</h2>
			
 
				-<p>This predicate holds it all its elements satisfy a given condition, represented by the predicate.</p>
			
 
				-<p></p>
			
 
				-<div class="variablelist">
			
 
				-<p class="title"><b>Parameters</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="term">Input</span></dt>
			
 
				-<dd><p>An input sequence </p></dd>
			
 
				-<dt><span class="term">Pred</span></dt>
			
 
				-<dd><p>A predicate </p></dd>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    The result of the test<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Notes</span></b>:
			
 
				-
			
 
				-    This function provides the strong exception-safety guarantee </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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--- a/doc/html/all_date_names_put.html
+++ b/doc/html/all_date_names_put.html
@@ -1,120 +0,0 @@
 
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				-<title>Class template all_date_names_put</title>
			
 
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				-<link rel="up" href="date_time/doxy.html#id1072331" title="Header &lt;boost/date_time/date_names_put.hpp&gt;">
			
 
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				-<a name="all_date_names_put"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template all_date_names_put</span></h2>
			
 
				-<p>boost::date_time::all_date_names_put &#8212; A date name output facet that takes an array of char* to define strings. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Config, <span class="bold"><strong>typename</strong></span> charT = <span class="bold"><strong>char</strong></span>, 
			
 
				-         <span class="bold"><strong>typename</strong></span> <a href="OutputIterator.html" title="Concept OutputIterator">OutputIterator</a> = std::ostreambuf_iterator&lt;charT&gt; &gt; 
			
 
				-<span class="bold"><strong>class</strong></span> all_date_names_put : <span class="bold"><strong>public</strong></span> boost::date_time::date_names_put&lt; Config, charT, OutputIterator &gt;
			
 
				-{
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> OutputIterator             iter_type;         
			
 
				-  <span class="bold"><strong>typedef</strong></span> Config::month_enum         month_enum;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> Config::weekday_enum       weekday_enum;      
			
 
				-  <span class="bold"><strong>typedef</strong></span> Config::special_value_enum special_value_enum;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="all_date_names_put.html#all_date_names_putconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="all_date_names_put.html#id936796-bb">all_date_names_put</a>(<span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span>, <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span>, 
			
 
				-                     <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span>, <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span>, 
			
 
				-                     <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span>, charT = '-', 
			
 
				-                     ymd_order_spec = ymd_order_iso, 
			
 
				-                     month_format_spec = month_as_short_string);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="all_date_names_put.html#id929560-bb">public member functions</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a href="all_date_names_put.html#id929565-bb">get_short_month_names</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a href="all_date_names_put.html#id1069945-bb">get_long_month_names</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a href="all_date_names_put.html#id801418-bb">get_special_value_names</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a href="all_date_names_put.html#id971730-bb">get_short_weekday_names</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a href="all_date_names_put.html#id822494-bb">get_long_weekday_names</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="all_date_names_put.html#id825192-bb">protected member functions</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id825197-bb">do_put_month_short</a>(iter_type &amp;, month_enum) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id933199-bb">do_put_month_long</a>(iter_type &amp;, month_enum) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id1075710-bb">do_put_special_value</a>(iter_type &amp;, special_value_enum) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id1104596-bb">do_put_weekday_short</a>(iter_type &amp;, weekday_enum) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id792600-bb">do_put_weekday_long</a>(iter_type &amp;, weekday_enum) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id838764-bb">do_month_sep_char</a>(iter_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a href="all_date_names_put.html#id1045428-bb">do_day_sep_char</a>(iter_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> ymd_order_spec</span> <a href="all_date_names_put.html#id970879-bb">do_date_order</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>virtual</strong></span> month_format_spec</span> <a href="all_date_names_put.html#id1077877-bb">do_month_format</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1079994"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1079997"></a><h3>
			
 
				-<a name="all_date_names_putconstruct-copy-destruct"></a><code class="computeroutput">all_date_names_put</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id936796-bb"></a>all_date_names_put(<span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> month_short_names, 
			
 
				-                   <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> month_long_names, 
			
 
				-                   <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> special_value_names, 
			
 
				-                   <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> weekday_short_names, 
			
 
				-                   <span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> weekday_long_names, 
			
 
				-                   charT separator_char = '-', 
			
 
				-                   ymd_order_spec order_spec = ymd_order_iso, 
			
 
				-                   month_format_spec month_format = month_as_short_string);</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1080096"></a><h3>
			
 
				-<a name="id929560-bb"></a><code class="computeroutput">all_date_names_put</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a name="id929565-bb"></a>get_short_month_names() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a name="id1069945-bb"></a>get_long_month_names() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a name="id801418-bb"></a>get_special_value_names() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a name="id971730-bb"></a>get_short_weekday_names() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> charT *<span class="bold"><strong>const</strong></span> *</span> <a name="id822494-bb"></a>get_long_weekday_names() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1080280"></a><h3>
			
 
				-<a name="id825192-bb"></a><code class="computeroutput">all_date_names_put</code> protected member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a name="id825197-bb"></a>do_put_month_short(iter_type &amp; oitr, month_enum moy) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a name="id933199-bb"></a>do_put_month_long(iter_type &amp; oitr, month_enum moy) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> 
			
 
				-<a name="id1075710-bb"></a>do_put_special_value(iter_type &amp; oitr, special_value_enum sv) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a name="id1104596-bb"></a>do_put_weekday_short(iter_type &amp; oitr, weekday_enum wd) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a name="id792600-bb"></a>do_put_weekday_long(iter_type &amp; oitr, weekday_enum wd) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a name="id838764-bb"></a>do_month_sep_char(iter_type &amp; oitr) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> <span class="bold"><strong>void</strong></span></span> <a name="id1045428-bb"></a>do_day_sep_char(iter_type &amp; oitr) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> ymd_order_spec</span> <a name="id970879-bb"></a>do_date_order() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>virtual</strong></span> month_format_spec</span> <a name="id1077877-bb"></a>do_month_format() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
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				-<h2><span class="refentrytitle">Class ambiguous_option</span></h2>
			
 
				-<p>boost::program_options::ambiguous_option &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> ambiguous_option : <span class="bold"><strong>public</strong></span> boost::program_options::error {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="ambiguous_option.html#ambiguous_optionconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="ambiguous_option.html#id656261-bb">ambiguous_option</a>(<span class="bold"><strong>const</strong></span> std::string &amp;, <span class="bold"><strong>const</strong></span> std::vector&lt; std::string &gt; &amp;);
			
 
				-  <a href="ambiguous_option.html#id864630-bb">~ambiguous_option</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="ambiguous_option.html#id822608-bb">public member functions</a></em></span>
			
 
				-
			
 
				-  std::vector&lt; std::string &gt; alternatives;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1249951"></a><h2>Description</h2>
			
 
				-<p>Class thrown when there's ambiguity amoung several possible options. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1249958"></a><h3>
			
 
				-<a name="ambiguous_optionconstruct-copy-destruct"></a><code class="computeroutput">ambiguous_option</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id656261-bb"></a>ambiguous_option(<span class="bold"><strong>const</strong></span> std::string &amp; name, 
			
 
				-                 <span class="bold"><strong>const</strong></span> std::vector&lt; std::string &gt; &amp; alternatives);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id864630-bb"></a>~ambiguous_option();</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1250018"></a><h3>
			
 
				-<a name="id822608-bb"></a><code class="computeroutput">ambiguous_option</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002-2004 Vladimir Prus</small></td>
			
 
				-</tr></table>
			
 
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--- a/doc/html/ambiguous_result.html
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				-<h2><span class="refentrytitle">Struct ambiguous_result</span></h2>
			
 
				-<p>boost::local_time::ambiguous_result &#8212; simple exception for reporting when STD or DST cannot be determined </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>struct</strong></span> ambiguous_result {
			
 
				-  <span class="emphasis"><em>// <a href="ambiguous_result.html#ambiguous_resultconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="ambiguous_result.html#id821403-bb">ambiguous_result</a>(std::string = "");
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="ambiguous_result.html#id821397-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1181119"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1181122"></a><h3>
			
 
				-<a name="ambiguous_resultconstruct-copy-destruct"></a><code class="computeroutput">ambiguous_result</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id821403-bb"></a>ambiguous_result(std::string _msg = "");</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1181157"></a><h3>
			
 
				-<a name="id821397-bb"></a><code class="computeroutput">ambiguous_result</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
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				-<title>Chapter 1. Boost.Any</title>
			
 
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				-<div><h2 class="title">
			
 
				-<a name="any"></a>Chapter 1. Boost.Any</h2></div>
			
 
				-<div><div class="author"><h3 class="author">
			
 
				-<span class="firstname">Kevlin</span> <span class="surname">Henney</span>
			
 
				-</h3></div></div>
			
 
				-<div><p class="copyright">Copyright © 2001 Kevlin Henney</p></div>
			
 
				-</div></div>
			
 
				-<div class="toc">
			
 
				-<p><b>Table of Contents</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="section"><a href="any.html#id969830">Introduction</a></span></dt>
			
 
				-<dt><span class="section"><a href="any/s02.html">Examples</a></span></dt>
			
 
				-<dt><span class="section"><a href="any/reference.html">Reference</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="any/reference.html#any.ValueType"><span class="emphasis"><em>ValueType</em></span> requirements</a></span></dt>
			
 
				-<dt><span class="section"><a href="any/reference.html#header.boost.any.hpp">Header &lt;boost/any.hpp&gt;</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="any/s04.html">Acknowledgements</a></span></dt>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id969830"></a>Introduction</h3></div></div></div>
			
 
				-<p>There are times when a generic (in the sense of
			
 
				-    <span class="emphasis"><em>general</em></span> as opposed to
			
 
				-    <span class="emphasis"><em>template-based programming</em></span>) type is needed:
			
 
				-    variables that are truly variable, accommodating values of many
			
 
				-    other more specific types rather than C++'s normal strict and
			
 
				-    static types. We can distinguish three basic kinds of generic
			
 
				-    type:</p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>Converting types that can hold one of a number of
			
 
				-        possible value types, e.g. <code class="computeroutput">int</code> and
			
 
				-        <code class="computeroutput">string</code>, and freely convert between them, for
			
 
				-        instance interpreting <code class="computeroutput">5</code> as <code class="computeroutput">"5"</code> or
			
 
				-        vice-versa.  Such types are common in scripting and other
			
 
				-        interpreted
			
 
				-        languages. 
			
 
				-        <code class="computeroutput">boost::lexical_cast</code>
			
 
				-        supports such conversion functionality.</p></li>
			
 
				-<li><p>
			
 
				-        Discriminated types that contain values of different types but
			
 
				-        do not attempt conversion between them, i.e. <code class="computeroutput">5</code> is
			
 
				-        held strictly as an <code class="computeroutput">int</code> and is not implicitly
			
 
				-        convertible either to <code class="computeroutput">"5"</code> or to
			
 
				-        <code class="computeroutput">5.0</code>. Their indifference to interpretation but
			
 
				-        awareness of type effectively makes them safe, generic
			
 
				-        containers of single values, with no scope for surprises from
			
 
				-        ambiguous conversions.</p></li>
			
 
				-<li><p>
			
 
				-        Indiscriminate types that can refer to anything but are
			
 
				-        oblivious to the actual underlying type, entrusting all forms
			
 
				-        of access and interpretation to the programmer. This niche is
			
 
				-        dominated by <code class="computeroutput">void *</code>, which offers plenty of scope
			
 
				-        for surprising, undefined behavior.</p></li>
			
 
				-</ul></div>
			
 
				-<p>The <code class="computeroutput"><a href="boost/any.html" title="Class any">boost::any</a></code> class
			
 
				-    (based on the class of the same name described in <a href="http://www.two-sdg.demon.co.uk/curbralan/papers/ValuedConversions.pdf" target="_top">"Valued
			
 
				-    Conversions"</a> by Kevlin Henney, <span class="emphasis"><em>C++
			
 
				-    Report</em></span> 12(7), July/August 2000) is a variant value type
			
 
				-    based on the second category. It supports copying of any value
			
 
				-    type and safe checked extraction of that value strictly against
			
 
				-    its type. A similar design, offering more appropriate operators,
			
 
				-    can be used for a generalized function adaptor,
			
 
				-    <code class="computeroutput">any_function</code>, a generalized iterator adaptor,
			
 
				-    <code class="computeroutput">any_iterator</code>, and other object types that need
			
 
				-    uniform runtime treatment but support only compile-time template
			
 
				-    parameter conformance.</p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"><small><p>Last revised: March 15, 2003 at 23:12:35 GMT</p></small></td>
			
 
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				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="any.reference"></a>Reference</h3></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="reference.html#any.ValueType"><span class="emphasis"><em>ValueType</em></span> requirements</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference.html#header.boost.any.hpp">Header &lt;boost/any.hpp&gt;</a></span></dt>
			
 
				-</dl></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="any.ValueType"></a><span class="emphasis"><em>ValueType</em></span> requirements</h4></div></div></div>
			
 
				-<p>Values are strongly informational objects for which
			
 
				-      identity is not significant, i.e. the focus is principally on
			
 
				-      their state content and any behavior organized around
			
 
				-      that. Another distinguishing feature of values is their
			
 
				-      granularity: normally fine-grained objects representing simple
			
 
				-      concepts in the system such as quantities.</p>
			
 
				-<p>As the emphasis of a value lies in its state not its
			
 
				-      identity, values can be copied and typically assigned one to
			
 
				-      another, requiring the explicit or implicit definition of a
			
 
				-      public copy constructor and public assignment operator. Values
			
 
				-      typically live within other scopes, i.e. within objects or
			
 
				-      blocks, rather than on the heap. Values are therefore normally
			
 
				-      passed around and manipulated directly as variables or through
			
 
				-      references, but not as pointers that emphasize identity and
			
 
				-      indirection.</p>
			
 
				-<p>The specific requirements on value types to be used in an
			
 
				-      <code class="computeroutput"><a href="../boost/any.html" title="Class any">any</a></code>
			
 
				-      are:</p>
			
 
				-<div class="itemizedlist"><ul type="disc" compact>
			
 
				-<li>A <span class="emphasis"><em>ValueType</em></span> is
			
 
				-          <span class="emphasis"><em>CopyConstructible</em></span> [20.1.3].</li>
			
 
				-<li>A <span class="emphasis"><em>ValueType</em></span> is
			
 
				-        optionally <span class="emphasis"><em>Assignable</em></span> [23.1]. The strong
			
 
				-        exception-safety guarantee is required for all forms of
			
 
				-        assignment.</li>
			
 
				-<li>The destructor for a
			
 
				-        <span class="emphasis"><em>ValueType</em></span> upholds the no-throw
			
 
				-        exception-safety guarantee.</li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="header.boost.any.hpp"></a>Header &lt;<a href="../../../boost/any.hpp" target="_top">boost/any.hpp</a>&gt;</h4></div></div></div>
			
 
				-<pre class="synopsis"><span class="bold"><strong>namespace</strong></span> boost {
			
 
				-  <span class="bold"><strong>class</strong></span> <a href="../bad_any_cast.html" title="Class bad_any_cast">bad_any_cast</a>;
			
 
				-  <span class="bold"><strong>class</strong></span> <a href="../boost/any.html" title="Class any">any</a>;
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type">ValueType</span> <a href="../any_cast.html" title="Function any_cast">any_cast</a>(<span class="bold"><strong>const</strong></span> <a href="../boost/any.html" title="Class any">any</a> &amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type"><span class="bold"><strong>const</strong></span> ValueType *</span> <a href="../any_cast.html" title="Function any_cast">any_cast</a>(<span class="bold"><strong>const</strong></span> <a href="../boost/any.html" title="Class any">any</a> *);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type">ValueType *</span> <a href="../any_cast.html" title="Function any_cast">any_cast</a>(<a href="../boost/any.html" title="Class any">any</a> *);
			
 
				-}</pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001 Kevlin Henney</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="s02.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../any.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="../bad_any_cast.html"><img src="../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/any/s02.html
+++ b/doc/html/any/s02.html
@@ -1,144 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Examples</title>
			
 
				-<link rel="stylesheet" href="../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../any.html" title="Chapter 1. Boost.Any">
			
 
				-<link rel="prev" href="../any.html" title="Chapter 1. Boost.Any">
			
 
				-<link rel="next" href="reference.html" title="Reference">
			
 
				-</head>
			
 
				-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
			
 
				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../people/people.htm">People</a></td>
			
 
				-<td align="center"><a href="../../../more/faq.htm">FAQ</a></td>
			
 
				-<td align="center"><a href="../../../more/index.htm">More</a></td>
			
 
				-</table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="../any.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../any.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="reference.html"><img src="../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id969978"></a>Examples</h3></div></div></div>
			
 
				-<p>The following code demonstrates the syntax for using
			
 
				-    implicit conversions to and copying of any objects:</p>
			
 
				-<pre class="programlisting">
			
 
				-#include &lt;list&gt;
			
 
				-#include &lt;boost/any.hpp&gt;
			
 
				-
			
 
				-using <code class="computeroutput"><a href="../any_cast.html" title="Function any_cast">boost::any_cast</a></code>;
			
 
				-typedef std::list&lt;<code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code>&gt; many;
			
 
				-
			
 
				-void append_int(many &amp; values, int value)
			
 
				-{
			
 
				-    <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> to_append = value;
			
 
				-    values.push_back(to_append);
			
 
				-}
			
 
				-
			
 
				-void append_string(many &amp; values, const std::string &amp; value)
			
 
				-{
			
 
				-    values.push_back(value);
			
 
				-}
			
 
				-
			
 
				-void append_char_ptr(many &amp; values, const char * value)
			
 
				-{
			
 
				-    values.push_back(value);
			
 
				-}
			
 
				-
			
 
				-void append_any(many &amp; values, const <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> &amp; value)
			
 
				-{
			
 
				-    values.push_back(value);
			
 
				-}
			
 
				-
			
 
				-void append_nothing(many &amp; values)
			
 
				-{
			
 
				-    values.push_back(<code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code>());
			
 
				-}
			
 
				-</pre>
			
 
				-<p>The following predicates follow on from the previous
			
 
				-    definitions and demonstrate the use of queries on any
			
 
				-    objects:</p>
			
 
				-<pre class="programlisting">
			
 
				-bool is_empty(const <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> &amp; operand)
			
 
				-{
			
 
				-    return operand.<code class="computeroutput"><a href="../boost/any.html#id761592-bb">empty</a></code>();
			
 
				-}
			
 
				-
			
 
				-bool is_int(const <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> &amp; operand)
			
 
				-{
			
 
				-    return operand.<code class="computeroutput"><a href="../boost/any.html#id761615-bb">type</a></code>() == typeid(int);
			
 
				-}
			
 
				-
			
 
				-bool is_char_ptr(const <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> &amp; operand)
			
 
				-{
			
 
				-    try
			
 
				-    {
			
 
				-        <code class="computeroutput"><a href="../any_cast.html" title="Function any_cast">any_cast</a></code>&lt;const char *&gt;(operand);
			
 
				-        return true;
			
 
				-    }
			
 
				-    catch(const <code class="computeroutput"><a href="../bad_any_cast.html" title="Class bad_any_cast">boost::bad_any_cast</a></code> &amp;)
			
 
				-    {
			
 
				-        return false;
			
 
				-    }
			
 
				-}
			
 
				-
			
 
				-bool is_string(const <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> &amp; operand)
			
 
				-{
			
 
				-    return <code class="computeroutput"><a href="../any_cast.html" title="Function any_cast">any_cast</a></code>&lt;std::string&gt;(&amp;operand);
			
 
				-}
			
 
				-
			
 
				-void count_all(many &amp; values, std::ostream &amp; out)
			
 
				-{
			
 
				-    out &lt;&lt; "#empty == "
			
 
				-        &lt;&lt; std::count_if(values.begin(), values.end(), is_empty) &lt;&lt; std::endl;
			
 
				-    out &lt;&lt; "#int == "
			
 
				-        &lt;&lt; std::count_if(values.begin(), values.end(), is_int) &lt;&lt; std::endl;
			
 
				-    out &lt;&lt; "#const char * == "
			
 
				-        &lt;&lt; std::count_if(values.begin(), values.end(), is_char_ptr) &lt;&lt; std::endl;
			
 
				-    out &lt;&lt; "#string == "
			
 
				-        &lt;&lt; std::count_if(values.begin(), values.end(), is_string) &lt;&lt; std::endl;
			
 
				-}
			
 
				-</pre>
			
 
				-<p>The following type, patterned after the OMG's Property Service, defines name-value pairs for arbitrary value types:</p>
			
 
				-<pre class="programlisting">
			
 
				-struct property
			
 
				-{
			
 
				-    property();
			
 
				-    property(const std::string &amp;, const <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> &amp;);
			
 
				-
			
 
				-    std::string name;
			
 
				-    <code class="computeroutput"><a href="../boost/any.html" title="Class any">boost::any</a></code> value;
			
 
				-};
			
 
				-
			
 
				-typedef std::list&lt;property&gt; properties;
			
 
				-</pre>
			
 
				-<p>The following base class demonstrates one approach to
			
 
				-    runtime polymorphism based callbacks that also require arbitrary
			
 
				-    argument types. The absence of virtual member templates requires
			
 
				-    that different solutions have different trade-offs in terms of
			
 
				-    efficiency, safety, and generality. Using a checked variant type
			
 
				-    offers one approach:</p>
			
 
				-<pre class="programlisting">
			
 
				-class consumer
			
 
				-{
			
 
				-public:
			
 
				-    virtual void notify(const <code class="computeroutput"><a href="../boost/any.html" title="Class any">any</a></code> &amp;) = 0;
			
 
				-    ...
			
 
				-};
			
 
				-</pre>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001 Kevlin Henney</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="../any.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../any.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="reference.html"><img src="../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/any/s04.html
+++ b/doc/html/any/s04.html
@@ -1,39 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Acknowledgements</title>
			
 
				-<link rel="stylesheet" href="../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../any.html" title="Chapter 1. Boost.Any">
			
 
				-<link rel="prev" href="../any_cast.html" title="Function any_cast">
			
 
				-<link rel="next" href="../array.html" title="Chapter 2. Boost.Array">
			
 
				-</head>
			
 
				-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
			
 
				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../people/people.htm">People</a></td>
			
 
				-<td align="center"><a href="../../../more/faq.htm">FAQ</a></td>
			
 
				-<td align="center"><a href="../../../more/index.htm">More</a></td>
			
 
				-</table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="../any_cast.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../any.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="../array.html"><img src="../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id971646"></a>Acknowledgements</h3></div></div></div>
			
 
				-<p>Doug Gregor ported the documentation to the BoostBook format.</p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001 Kevlin Henney</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="../any_cast.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../any.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="../array.html"><img src="../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/any_cast.html
+++ b/doc/html/any_cast.html
@@ -1,69 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Function any_cast</title>
			
 
				-<link rel="stylesheet" href="boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<link rel="start" href="index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="any/reference.html#header.boost.any.hpp" title="Header &lt;boost/any.hpp&gt;">
			
 
				-<link rel="prev" href="boost/any.html" title="Class any">
			
 
				-<link rel="next" href="any/s04.html" title="Acknowledgements">
			
 
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				-<td align="center"><a href="../../more/index.htm">More</a></td>
			
 
				-</table>
			
 
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				-</div>
			
 
				-<div class="refentry" lang="en">
			
 
				-<a name="any_cast"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Function any_cast</span></h2>
			
 
				-<p>boost::any_cast &#8212; <p>Custom keyword cast for extracting a value
			
 
				-          of a given type from an
			
 
				-          <code class="computeroutput"><a href="boost/any.html" title="Class any">any</a></code>.</p></p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type">ValueType</span> any_cast(<span class="bold"><strong>const</strong></span> <a href="boost/any.html" title="Class any">any</a> &amp; operand);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type"><span class="bold"><strong>const</strong></span> ValueType *</span> any_cast(<span class="bold"><strong>const</strong></span> <a href="boost/any.html" title="Class any">any</a> * operand);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type">ValueType *</span> any_cast(<a href="boost/any.html" title="Class any">any</a> * operand);</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id971581"></a><h2>Description</h2>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-     If passed a pointer, it returns a
			
 
				-          similarly qualified pointer to the value content if
			
 
				-          successful, otherwise null is returned. If passed a value or
			
 
				-          reference, it returns a copy of the value content if
			
 
				-          successful.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Overloads taking an
			
 
				-          <code class="computeroutput"><a href="boost/any.html" title="Class any">any</a></code> pointer do not
			
 
				-          throw; the overload taking an
			
 
				-          <code class="computeroutput"><a href="boost/any.html" title="Class any">any</a></code> value or reference
			
 
				-          throws <code class="computeroutput"><a href="bad_any_cast.html" title="Class bad_any_cast">bad_any_cast</a></code> if
			
 
				-          unsuccessful.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Rationale</span></b>:
			
 
				-
			
 
				-    The value/reference version returns a
			
 
				-          copy because the C++ keyword casts return
			
 
				-          copies.</p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001 Kevlin Henney</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="boost/any.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="any/reference.html#header.boost.any.hpp"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="any/s04.html"><img src="images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/apa.html
+++ b/doc/html/apa.html
@@ -1,111 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Appendix A. Rationale for some of the design decisions</title>
			
 
				-<link rel="stylesheet" href="boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<link rel="start" href="index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="lambda.html" title="Chapter 6. Boost.Lambda">
			
 
				-<link rel="prev" href="lambda/s09.html" title="Contributors">
			
 
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				-</div>
			
 
				-<div class="appendix" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title">
			
 
				-<a name="id1246210"></a>Appendix A. Rationale for some of the design decisions</h2></div></div></div>
			
 
				-<div class="toc">
			
 
				-<p><b>Table of Contents</b></p>
			
 
				-<dl><dt><span class="section"><a href="apa.html#lambda.why_weak_arity">
			
 
				-Lambda functor arity
			
 
				-</a></span></dt></dl>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="lambda.why_weak_arity"></a>
			
 
				-Lambda functor arity
			
 
				-</h4></div></div></div>
			
 
				-<p>
			
 
				-The highest placeholder index in a lambda expression determines the arity of the resulting function object.
			
 
				-However, this is just the minimal arity, as the function object can take arbitrarily many arguments; those not needed are discarded.
			
 
				-Consider the two bind expressions and their invocations below:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bind(g, _3, _3, _3)(x, y, z); 
			
 
				-bind(g, _1, _1, _1)(x, y, z); 
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-This first line discards arguments <code class="literal">x</code> and
			
 
				-<code class="literal">y</code>, and makes the call:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-g(z, z, z) 
			
 
				-</pre>
			
 
				-<p>
			
 
				-whereas the second line discards arguments <code class="literal">y</code> and
			
 
				-<code class="literal">z</code>, and calls:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-g(x, x, x)
			
 
				-</pre>
			
 
				-<p>
			
 
				-In earlier versions of the library, the latter line resulted in a compile 
			
 
				-time error.
			
 
				-
			
 
				-This is basically a tradeoff between safety and flexibility, and the issue
			
 
				-was extensively discussed during the Boost review period of the library.
			
 
				-The main points for the <span class="emphasis"><em>strict arity</em></span> checking
			
 
				-was that it might
			
 
				-catch a programming error at an earlier time and that a lambda expression that
			
 
				-explicitly discards its arguments is easy to write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-(_3, bind(g, _1, _1, _1))(x, y, z);
			
 
				-</pre>
			
 
				-<p>
			
 
				-This lambda expression takes three arguments.
			
 
				-The left-hand argument of the comma operator does nothing, and as comma 
			
 
				-returns the result of evaluating the right-hand argument we end up with 
			
 
				-the call
			
 
				-<code class="literal">g(x, x, x)</code>
			
 
				-even with the strict arity.
			
 
				-</p>
			
 
				-<p>
			
 
				-The main points against the strict arity checking were that the need to 
			
 
				-discard arguments is commonplace, and should therefore be straightforward, 
			
 
				-and that strict arity checking does not really buy that much more safety, 
			
 
				-particularly as it is not symmetric.
			
 
				-For example, if the programmer wanted to write the expression 
			
 
				-<code class="literal">_1 + _2</code> but mistakenly wrote <code class="literal">_1 + 2</code>, 
			
 
				-with strict arity checking, the complier would spot the error.
			
 
				-However, if the erroneous expression was <code class="literal">1 + _2</code> instead,
			
 
				-the error would go unnoticed.
			
 
				-Furthermore, weak arity checking simplifies the implementation a bit.
			
 
				-Following the recommendation of the Boost review, strict arity checking 
			
 
				-was dropped.
			
 
				-</p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 1999-2004 Jaakko Järvi, Gary Powell</small></td>
			
 
				-</tr></table>
			
 
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				-<a name="apply_visitor"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Function apply_visitor</span></h2>
			
 
				-<p>boost::apply_visitor &#8212; <p>Allows compile-time checked type-safe application of the
			
 
				-        given visitor to the content of the given variant, ensuring that all
			
 
				-        types are handled by the visitor.</p></p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Visitor, <span class="bold"><strong>typename</strong></span> Variant&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>typename</strong></span> Visitor::result_type</span> 
			
 
				-  apply_visitor(Visitor &amp; visitor, Variant &amp; operand);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Visitor, <span class="bold"><strong>typename</strong></span> Variant&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>typename</strong></span> Visitor::result_type</span> 
			
 
				-  apply_visitor(<span class="bold"><strong>const</strong></span> Visitor &amp; visitor, Variant &amp; operand);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> BinaryVisitor, <span class="bold"><strong>typename</strong></span> Variant1, <span class="bold"><strong>typename</strong></span> Variant2&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>typename</strong></span> BinaryVisitor::result_type</span> 
			
 
				-  apply_visitor(BinaryVisitor &amp; visitor, Variant1 &amp; operand1, 
			
 
				-                Variant2 &amp; operand2);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> BinaryVisitor, <span class="bold"><strong>typename</strong></span> Variant1, <span class="bold"><strong>typename</strong></span> Variant2&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>typename</strong></span> BinaryVisitor::result_type</span> 
			
 
				-  apply_visitor(<span class="bold"><strong>const</strong></span> BinaryVisitor &amp; visitor, Variant1 &amp; operand1, 
			
 
				-                Variant2 &amp; operand2);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Visitor&gt; 
			
 
				-  <span class="type"><a href="apply_visitor_delayed_t.html" title="Class template apply_visitor_delayed_t">apply_visitor_delayed_t</a>&lt;Visitor&gt;</span> apply_visitor(Visitor &amp; visitor);</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1668869"></a><h2>Description</h2>
			
 
				-<p>The behavior of <code class="computeroutput">apply_visitor</code> is dependent on
			
 
				-        the number of arguments on which it operates (i.e., other than the
			
 
				-        visitor). The function behaves as follows:
			
 
				-
			
 
				-          <div class="itemizedlist"><ul type="disc">
			
 
				-<li>Overloads accepting one operand invoke the unary function
			
 
				-              call operator of the given visitor on the content of the given
			
 
				-              <code class="computeroutput"><a href="boost/variant.html" title="Class template variant">variant</a></code> operand.</li>
			
 
				-<li>Overloads accepting two operands invoke the binary
			
 
				-              function call operator of the given visitor on the content of
			
 
				-              the given <code class="computeroutput"><a href="boost/variant.html" title="Class template variant">variant</a></code>
			
 
				-              operands.</li>
			
 
				-<li>The overload accepting only a visitor returns a
			
 
				-              <code class="computeroutput"><a href="apply_visitor_delayed_t.html" title="Class template apply_visitor_delayed_t">generic function object</a></code>
			
 
				-              that accepts either one or two arguments and invokes
			
 
				-              <code class="computeroutput"><a href="apply_visitor.html" title="Function apply_visitor">apply_visitor</a></code> using
			
 
				-              these arguments and <code class="computeroutput">visitor</code>, thus behaving as
			
 
				-              specified above. (This behavior is particularly useful, for
			
 
				-              example, when one needs to operate on each element of a sequence
			
 
				-              of variant objects using a standard library
			
 
				-              algorithm.)</li>
			
 
				-</ul></div></p>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    The overloads acccepting operands return the result of
			
 
				-        applying the given visitor to the content of the given operands.
			
 
				-        The overload accepting only a visitor return a function object, thus
			
 
				-        delaying application of the visitor to any operands.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Requires</span></b>:
			
 
				-
			
 
				-    The given visitor must fulfill the
			
 
				-        <a href="variant/reference.html#variant.concepts.static-visitor" title="StaticVisitor"><span class="emphasis"><em>StaticVisitor</em></span></a>
			
 
				-        concept requirements with respect to each of the bounded types of the
			
 
				-        given <code class="computeroutput">variant</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    The overloads accepting operands throw only if the given
			
 
				-        visitor throws when applied. The overload accepting only a visitor
			
 
				-        will not throw. (Note, however, that the returned
			
 
				-        <a href="apply_visitor_delayed_t.html" title="Class template apply_visitor_delayed_t">function object</a>
			
 
				-        may throw when invoked.)</p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002, 2003 Eric Friedman, Itay Maman</small></td>
			
 
				-</tr></table>
			
 
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				-<a name="apply_visitor_delayed_t"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template apply_visitor_delayed_t</span></h2>
			
 
				-<p>boost::apply_visitor_delayed_t &#8212; Adapts a visitor for use as a function object.</p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Visitor&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> apply_visitor_delayed_t {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> <span class="bold"><strong>typename</strong></span> Visitor::result_type result_type;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="apply_visitor_delayed_t.html#apply_visitor_delayed_tconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <span class="bold"><strong>explicit</strong></span> <a href="apply_visitor_delayed_t.html#id1208233-bb">apply_visitor_delayed_t</a>(Visitor &amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="apply_visitor_delayed_t.html#id1314580-bb">function object interface</a></em></span>
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Variant&gt; <span class="type">result_type</span> <a href="apply_visitor_delayed_t.html#id1207026-bb"><span class="bold"><strong>operator</strong></span>()</a>(Variant &amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Variant1, <span class="bold"><strong>typename</strong></span> Variant2&gt; 
			
 
				-    <span class="type">result_type</span> <a href="apply_visitor_delayed_t.html#id1251205-bb"><span class="bold"><strong>operator</strong></span>()</a>(Variant1 &amp;, Variant2 &amp;);
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1668496"></a><h2>Description</h2>
			
 
				-<p>Adapts the function given at construction for use as a
			
 
				-          function object. This is useful, for example, when one needs to
			
 
				-          operate on each element of a sequence of variant objects using a
			
 
				-          standard library algorithm such as
			
 
				-          <code class="computeroutput">std::for_each</code>.</p>
			
 
				-<p>See the "visitor-only" form of
			
 
				-          <code class="computeroutput"><a href="apply_visitor.html" title="Function apply_visitor">apply_visitor</a></code> for a simple
			
 
				-          way to create <code class="computeroutput">apply_visitor_delayed_t</code> objects.</p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1668530"></a><h3>
			
 
				-<a name="apply_visitor_delayed_tconstruct-copy-destruct"></a><code class="computeroutput">apply_visitor_delayed_t</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>explicit</strong></span> <a name="id1208233-bb"></a>apply_visitor_delayed_t(Visitor &amp; visitor);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Constructs the function object with the given
			
 
				-            visitor.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1668581"></a><h3>
			
 
				-<a name="id1314580-bb"></a><code class="computeroutput">apply_visitor_delayed_t</code> function object interface</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<p><a name="id1314583-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Variant&gt; <span class="type">result_type</span> <a name="id1207026-bb"></a><span class="bold"><strong>operator</strong></span>()(Variant &amp; operand);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Variant1, <span class="bold"><strong>typename</strong></span> Variant2&gt; 
			
 
				-  <span class="type">result_type</span> <a name="id1251205-bb"></a><span class="bold"><strong>operator</strong></span>()(Variant1 &amp; operand1, Variant2 &amp; operand2);</pre>
			
 
				-<p>Invokes
			
 
				-            <code class="computeroutput"><a href="apply_visitor.html" title="Function apply_visitor">apply_visitor</a></code> on the
			
 
				-            stored visitor using the given operands.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002, 2003 Eric Friedman, Itay Maman</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
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				-<div><h2 class="title">
			
 
				-<a name="array"></a>Chapter 2. Boost.Array</h2></div>
			
 
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				-<span class="firstname">Nicolai</span> <span class="surname">Josuttis</span>
			
 
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				-<div><p class="copyright">Copyright © 2001-2004 Nicolai M. Josuttis</p></div>
			
 
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				-<a name="id971681"></a><p>Permission to copy, use, modify, sell and distribute this
			
 
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				-<div class="toc">
			
 
				-<p><b>Table of Contents</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="section"><a href="array.html#array.intro">Introduction</a></span></dt>
			
 
				-<dt><span class="section"><a href="array/reference.html">Reference</a></span></dt>
			
 
				-<dd><dl><dt><span class="section"><a href="array/reference.html#header.boost.array.hpp">Header &lt;boost/array.hpp&gt;</a></span></dt></dl></dd>
			
 
				-<dt><span class="section"><a href="array/rationale.html">Design Rationale</a></span></dt>
			
 
				-<dt><span class="section"><a href="array/more/info.html">For more information...</a></span></dt>
			
 
				-<dt><span class="section"><a href="array/ack.html">Acknowledgements</a></span></dt>
			
 
				-</dl>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="array.intro"></a>Introduction</h3></div></div></div>
			
 
				-<p>The C++ Standard Template Library STL as part of the C++
			
 
				-    Standard Library provides a framework for processing algorithms on
			
 
				-    different kind of containers. However, ordinary arrays don't
			
 
				-    provide the interface of STL containers (although, they provide
			
 
				-    the iterator interface of STL containers).</p>
			
 
				-<p>As replacement for ordinary arrays, the STL provides class
			
 
				-    <code class="computeroutput">std::vector</code>.  However,
			
 
				-    <code class="computeroutput">std::vector&lt;&gt;</code> provides
			
 
				-    the semantics of dynamic arrays. Thus, it manages data to be able
			
 
				-    to change the number of elements. This results in some overhead in
			
 
				-    case only arrays with static size are needed.</p>
			
 
				-<p>In his book, <span class="emphasis"><em>Generic Programming and the
			
 
				-    STL</em></span>, Matthew H. Austern introduces a useful wrapper
			
 
				-    class for ordinary arrays with static size, called
			
 
				-    <code class="computeroutput">block</code>.  It is safer and has no worse performance than
			
 
				-    ordinary arrays. In <span class="emphasis"><em>The C++ Programming
			
 
				-    Language</em></span>, 3rd edition, Bjarne Stroustrup introduces a
			
 
				-    similar class, called <code class="computeroutput">c_array</code>, which I (<a href="http://www.josuttis.com" target="_top">Nicolai Josuttis</a>) present
			
 
				-    slightly modified in my book <span class="emphasis"><em>The C++ Standard Library -
			
 
				-    A Tutorial and Reference</em></span>, called
			
 
				-    <code class="computeroutput">carray</code>. This is the essence of these approaches
			
 
				-    spiced with many feedback from <a href="http://www.boost.org" target="_top">boost</a>.</p>
			
 
				-<p>After considering different names, we decided to name this
			
 
				-    class simply <code class="computeroutput"><a href="boost/array.html" title="Class template array">array</a></code>.</p>
			
 
				-<p>Note that this class is suggested to be part of the next
			
 
				-    Technical Report, which will extend the C++ Standard (see
			
 
				-    <a href="" target="_top">http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2003/n1548.htm</a>).</p>
			
 
				-<p>Class <code class="computeroutput"><a href="boost/array.html" title="Class template array">array</a></code> fulfills most
			
 
				-    but not all of the requirements of "reversible containers" (see
			
 
				-    Section 23.1, [lib.container.requirements] of the C++
			
 
				-    Standard). The reasons array is not an reversible STL container is
			
 
				-    because:
			
 
				-      </p>
			
 
				-<div class="itemizedlist"><ul type="disc" compact>
			
 
				-<li>No constructors are provided.</li>
			
 
				-<li>Elements may have an undetermined initial value (see <a href="array/rationale.html" title="Design Rationale">the section called &#8220;Design Rationale&#8221;</a>).</li>
			
 
				-<li>
			
 
				-<code class="computeroutput"><a href="boost/array.html#id763420">swap</a></code>() has no constant complexity.</li>
			
 
				-<li>
			
 
				-<code class="computeroutput"><a href="boost/array.html#id686133-bb">size</a></code>() is always constant, based on the second template argument of the type.</li>
			
 
				-<li>The container provides no allocator support.</li>
			
 
				-</ul></div>
			
 
				-<p>It doesn't fulfill the requirements of a "sequence" (see Section 23.1.1, [lib.sequence.reqmts] of the C++ Standard), except that:
			
 
				-      </p>
			
 
				-<div class="itemizedlist"><ul type="disc" compact>
			
 
				-<li>
			
 
				-<code class="computeroutput"><a href="boost/array.html#id763241-bb">front</a></code>() and <code class="computeroutput"><a href="boost/array.html#id763273-bb">back</a></code>() are provided.</li>
			
 
				-<li>
			
 
				-<code class="computeroutput"><a href="boost/array.html#id685146-bb">operator[]</a></code> and <code class="computeroutput"><a href="boost/array.html#id726524-bb">at</a></code>() are provided.</li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"><small><p>Last revised: January 30, 2004 at 03:51:06 GMT</p></small></td>
			
 
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				-<div class="titlepage"><div><div><h3 class="title">
			
 
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				-<p>Doug Gregor ported the documentation to the BoostBook format.</p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-<p>To find more details about using ordinary arrays in C++ and
			
 
				-  the framework of the STL, see e.g.
			
 
				-
			
 
				-    </p>
			
 
				-<div class="literallayout"><p>The C++ Standard Library - A Tutorial and Reference<br>
			
 
				-by Nicolai M. Josuttis<br>
			
 
				-Addison Wesley Longman, 1999<br>
			
 
				-ISBN 0-201-37926-0</p></div>
			
 
				-<p><a href="http://www.josuttis.com/" target="_top">Home Page of Nicolai
			
 
				-  Josuttis</a></p>
			
 
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				-<p>There was an important design tradeoff regarding the
			
 
				-  constructors: We could implement array as an "aggregate" (see
			
 
				-  Section 8.5.1, [dcl.init.aggr], of the C++ Standard). This would
			
 
				-  mean:
			
 
				-    </p>
			
 
				-<div class="itemizedlist"><ul type="disc"><li>
			
 
				-<p>An array can be initialized with a
			
 
				-      brace-enclosing, comma-separated list of initializers for the
			
 
				-      elements of the container, written in increasing subscript
			
 
				-      order:</p>
			
 
				-<pre class="programlisting"><code class="computeroutput"><a href="../boost/array.html" title="Class template array">boost::array</a></code>&lt;int,4&gt; a = { { 1, 2, 3 } };</pre>
			
 
				-<p>Note that if there are fewer elements in the
			
 
				-      initializer list, then each remaining element gets
			
 
				-      default-initialized (thus, it has a defined value).</p>
			
 
				-</li></ul></div>
			
 
				-<p>However, this approach has its drawbacks: <span class="bold"><strong> passing no initializer list means that the elements
			
 
				-  have an indetermined initial value</strong></span>, because the rule says
			
 
				-  that aggregates may have:
			
 
				-    </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>No user-declared constructors.</li>
			
 
				-<li>No private or protected non-static data members.</li>
			
 
				-<li>No base classes.</li>
			
 
				-<li>No virtual functions.</li>
			
 
				-</ul></div>
			
 
				-<p>Nevertheless, The current implementation uses this approach.</p>
			
 
				-<p>Note that for standard conforming compilers it is possible to
			
 
				-  use fewer braces (according to 8.5.1 (11) of the Standard). That is,
			
 
				-  you can initialize an array as follows:</p>
			
 
				-<pre class="programlisting"><code class="computeroutput"><a href="../boost/array.html" title="Class template array">boost::array</a></code>&lt;int,4&gt; a = { 1, 2, 3 };
			
 
				-</pre>
			
 
				-<p>I'd appreciate any constructive feedback. <span class="bold"><strong>Please note: I don't have time to read all boost
			
 
				-  mails. Thus, to make sure that feedback arrives to me, please send
			
 
				-  me a copy of each mail regarding this class.</strong></span></p>
			
 
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				-<pre class="synopsis"><span class="bold"><strong>namespace</strong></span> boost {
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; <span class="bold"><strong>class</strong></span> <a href="../boost/array.html" title="Class template array">array</a>;
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="../boost/array.html#id763420">swap</a>(<a href="../boost/array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <a href="../boost/array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-    <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="../boost/array.html#id763478"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> <a href="../boost/array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="../boost/array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
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				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
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				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
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				-<p>boost::local_time::bad_adjustment &#8212; simple exception for UTC daylight savings adjustment </p>
			
 
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				-<span class="bold"><strong>struct</strong></span> bad_adjustment {
			
 
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				-  <a href="bad_adjustment.html#id1031899-bb">bad_adjustment</a>(std::string = "");
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_adjustment.html#id1031894-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1184122"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1184126"></a><h3>
			
 
				-<a name="bad_adjustmentconstruct-copy-destruct"></a><code class="computeroutput">bad_adjustment</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id1031899-bb"></a>bad_adjustment(std::string _msg = "");</pre></li></ol></div>
			
 
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				-<div class="refsect2" lang="en">
			
 
				-<a name="id1184159"></a><h3>
			
 
				-<a name="id1031894-bb"></a><code class="computeroutput">bad_adjustment</code> public member functions</h3>
			
 
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				-<p>boost::bad_any_cast &#8212; The exception thrown in the event of a failed
			
 
				-          <code class="computeroutput"><a href="any_cast.html" title="Function any_cast">any_cast</a></code> of an
			
 
				-          <code class="computeroutput"><a href="boost/any.html" title="Class any">any</a></code> value.</p>
			
 
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				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
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				-<span class="bold"><strong>class</strong></span> bad_any_cast : <span class="bold"><strong>public</strong></span> std::bad_cast {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="bold"><strong>virtual</strong></span> <span class="type"><span class="bold"><strong>const</strong></span> <span class="bold"><strong>char</strong></span> *</span> <a href="bad_any_cast.html#id728128-bb">what</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id970542"></a><h2>Description</h2>
			
 
				-<pre class="literallayout"><span class="bold"><strong>virtual</strong></span> <span class="type"><span class="bold"><strong>const</strong></span> <span class="bold"><strong>char</strong></span> *</span> <a name="id728128-bb"></a>what() <span class="bold"><strong>const</strong></span>;</pre>
			
 
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--- a/doc/html/bad_day_of_month.html
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				-<h2><span class="refentrytitle">Struct bad_day_of_month</span></h2>
			
 
				-<p>boost::gregorian::bad_day_of_month &#8212; Exception type for gregorian day of month (1..31). </p>
			
 
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				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
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				-<span class="bold"><strong>struct</strong></span> bad_day_of_month {
			
 
				-  <span class="emphasis"><em>// <a href="bad_day_of_month.html#bad_day_of_monthconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_day_of_month.html#id826911-bb">bad_day_of_month</a>();
			
 
				-  <a href="bad_day_of_month.html#id826913-bb">bad_day_of_month</a>(<span class="bold"><strong>const</strong></span> std::string &amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_day_of_month.html#id1106058-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
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				-<a name="id1150650"></a><h3>
			
 
				-<a name="bad_day_of_monthconstruct-copy-destruct"></a><code class="computeroutput">bad_day_of_month</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id826911-bb"></a>bad_day_of_month();</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id826913-bb"></a>bad_day_of_month(<span class="bold"><strong>const</strong></span> std::string &amp; s);</pre></li>
			
 
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				-<a name="id1150704"></a><h3>
			
 
				-<a name="id1106058-bb"></a><code class="computeroutput">bad_day_of_month</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
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--- a/doc/html/bad_day_of_year.html
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				-<p>boost::gregorian::bad_day_of_year &#8212; Exception type for day of year (1..366). </p>
			
 
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				-<span class="bold"><strong>struct</strong></span> bad_day_of_year {
			
 
				-  <span class="emphasis"><em>// <a href="bad_day_of_year.html#bad_day_of_yearconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_day_of_year.html#id1108640-bb">bad_day_of_year</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_day_of_year.html#id1108635-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1151132"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1151135"></a><h3>
			
 
				-<a name="bad_day_of_yearconstruct-copy-destruct"></a><code class="computeroutput">bad_day_of_year</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id1108640-bb"></a>bad_day_of_year();</pre></li></ol></div>
			
 
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				-<div class="refsect2" lang="en">
			
 
				-<a name="id1151168"></a><h3>
			
 
				-<a name="id1108635-bb"></a><code class="computeroutput">bad_day_of_year</code> public member functions</h3>
			
 
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--- a/doc/html/bad_field_count.html
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				-<h2><span class="refentrytitle">Struct bad_field_count</span></h2>
			
 
				-<p>boost::date_time::bad_field_count &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>struct</strong></span> bad_field_count {
			
 
				-  <span class="emphasis"><em>// <a href="bad_field_count.html#bad_field_countconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_field_count.html#id932728-bb">bad_field_count</a>(<span class="bold"><strong>const</strong></span> std::string &amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_field_count.html#id932723-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1147112"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1147115"></a><h3>
			
 
				-<a name="bad_field_countconstruct-copy-destruct"></a><code class="computeroutput">bad_field_count</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id932728-bb"></a>bad_field_count(<span class="bold"><strong>const</strong></span> std::string &amp; s);</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1147154"></a><h3>
			
 
				-<a name="id932723-bb"></a><code class="computeroutput">bad_field_count</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
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--- a/doc/html/bad_function_call.html
+++ b/doc/html/bad_function_call.html
@@ -1,61 +0,0 @@
 
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				-<h2><span class="refentrytitle">Class bad_function_call</span></h2>
			
 
				-<p>boost::bad_function_call &#8212; An exception type thrown when an instance of a <code class="computeroutput">function</code> object is empty when invoked.</p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> bad_function_call : <span class="bold"><strong>public</strong></span> std::runtime_error {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="bad_function_call.html#bad_function_callconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_function_call.html#id928551-bb">bad_function_call</a>();
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1206744"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1206748"></a><h3>
			
 
				-<a name="bad_function_callconstruct-copy-destruct"></a><code class="computeroutput">bad_function_call</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><a name="id928551-bb"></a>bad_function_call();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Constructs a <code class="computeroutput"><a href="bad_function_call.html" title="Class bad_function_call">bad_function_call</a></code> exception object.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2004 Douglas Gregor</small></td>
			
 
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--- a/doc/html/bad_get.html
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				-<a name="bad_get"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class bad_get</span></h2>
			
 
				-<p>boost::bad_get &#8212; <p>The exception thrown in	the	event	of a failed application of
			
 
				-        <code class="computeroutput"><a href="get.html" title="Function get">boost::get</a></code> on	the given
			
 
				-        operand value.</p></p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> bad_get : <span class="bold"><strong>public</strong></span> std::exception {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="bold"><strong>virtual</strong></span> <span class="type"><span class="bold"><strong>const</strong></span>	<span class="bold"><strong>char</strong></span> *</span> <a href="bad_get.html#id801330-bb">what</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1669332"></a><h2>Description</h2>
			
 
				-<pre class="literallayout"><span class="bold"><strong>virtual</strong></span> <span class="type"><span class="bold"><strong>const</strong></span>	<span class="bold"><strong>char</strong></span> *</span> <a name="id801330-bb"></a>what() <span class="bold"><strong>const</strong></span>;</pre>
			
 
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--- a/doc/html/bad_month.html
+++ b/doc/html/bad_month.html
@@ -1,62 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Struct bad_month</title>
			
 
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				-</div>
			
 
				-<div class="refentry" lang="en">
			
 
				-<a name="bad_month"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Struct bad_month</span></h2>
			
 
				-<p>boost::gregorian::bad_month &#8212; Exception thrown if a greg_month is constructed with a value out of range. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>struct</strong></span> bad_month {
			
 
				-  <span class="emphasis"><em>// <a href="bad_month.html#bad_monthconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_month.html#id692487-bb">bad_month</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_month.html#id692482-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1152847"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1152850"></a><h3>
			
 
				-<a name="bad_monthconstruct-copy-destruct"></a><code class="computeroutput">bad_month</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id692487-bb"></a>bad_month();</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1152883"></a><h3>
			
 
				-<a name="id692482-bb"></a><code class="computeroutput">bad_month</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
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--- a/doc/html/bad_offset.html
+++ b/doc/html/bad_offset.html
@@ -1,62 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Struct bad_offset</title>
			
 
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				-<link rel="prev" href="local_date_time_base.html" title="Class template local_date_time_base">
			
 
				-<link rel="next" href="bad_adjustment.html" title="Struct bad_adjustment">
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="bad_offset"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Struct bad_offset</span></h2>
			
 
				-<p>boost::local_time::bad_offset &#8212; simple exception for UTC and Daylight savings start/end offsets </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>struct</strong></span> bad_offset {
			
 
				-  <span class="emphasis"><em>// <a href="bad_offset.html#bad_offsetconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_offset.html#id1001792-bb">bad_offset</a>(std::string = "");
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_offset.html#id1002747-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1184007"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1184010"></a><h3>
			
 
				-<a name="bad_offsetconstruct-copy-destruct"></a><code class="computeroutput">bad_offset</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id1001792-bb"></a>bad_offset(std::string _msg = "");</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1184044"></a><h3>
			
 
				-<a name="id1002747-bb"></a><code class="computeroutput">bad_offset</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
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				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
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--- a/doc/html/bad_visit.html
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				-<html>
			
 
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				-<title>Class bad_visit</title>
			
 
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				-<link rel="prev" href="get.html" title="Function get">
			
 
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				-<a name="bad_visit"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class bad_visit</span></h2>
			
 
				-<p>boost::bad_visit &#8212; <p>The exception thrown in the event of a visitor
			
 
				-          unable to handle the visited value.</p></p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> bad_visit : <span class="bold"><strong>public</strong></span> std::exception {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="bold"><strong>virtual</strong></span> <span class="type"><span class="bold"><strong>const</strong></span> <span class="bold"><strong>char</strong></span> *</span> <a href="bad_visit.html#id1254309-bb">what</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1669929"></a><h2>Description</h2>
			
 
				-<pre class="literallayout"><span class="bold"><strong>virtual</strong></span> <span class="type"><span class="bold"><strong>const</strong></span> <span class="bold"><strong>char</strong></span> *</span> <a name="id1254309-bb"></a>what() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002, 2003 Eric Friedman, Itay Maman</small></td>
			
 
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				-</html>
			
--- a/doc/html/bad_weekday.html
+++ b/doc/html/bad_weekday.html
@@ -1,62 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Struct bad_weekday</title>
			
 
				-<link rel="stylesheet" href="boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
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				-<link rel="up" href="date_time/doxy.html#id973291" title="Header &lt;boost/date_time/gregorian/greg_weekday.hpp&gt;">
			
 
				-<link rel="prev" href="greg_month.html" title="Class greg_month">
			
 
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				-<a accesskey="p" href="greg_month.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="date_time/doxy.html#id973291"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="greg_weekday.html"><img src="images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-<div class="refentry" lang="en">
			
 
				-<a name="bad_weekday"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Struct bad_weekday</span></h2>
			
 
				-<p>boost::gregorian::bad_weekday &#8212; Exception that flags that a weekday number is incorrect. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>struct</strong></span> bad_weekday {
			
 
				-  <span class="emphasis"><em>// <a href="bad_weekday.html#bad_weekdayconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_weekday.html#id977285-bb">bad_weekday</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_weekday.html#id977279-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1171466"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1171470"></a><h3>
			
 
				-<a name="bad_weekdayconstruct-copy-destruct"></a><code class="computeroutput">bad_weekday</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id977285-bb"></a>bad_weekday();</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1171503"></a><h3>
			
 
				-<a name="id977279-bb"></a><code class="computeroutput">bad_weekday</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="greg_month.html"><img src="images/prev.png" alt="Prev"></a><a accesskey="u" href="date_time/doxy.html#id973291"><img src="images/up.png" alt="Up"></a><a accesskey="h" href="index.html"><img src="images/home.png" alt="Home"></a><a accesskey="n" href="greg_weekday.html"><img src="images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/bad_year.html
+++ b/doc/html/bad_year.html
@@ -1,62 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Struct bad_year</title>
			
 
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				-<link rel="prev" href="greg_weekday.html" title="Class greg_weekday">
			
 
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				-</div>
			
 
				-<div class="refentry" lang="en">
			
 
				-<a name="bad_year"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Struct bad_year</span></h2>
			
 
				-<p>boost::gregorian::bad_year &#8212; Exception type for gregorian year. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>struct</strong></span> bad_year {
			
 
				-  <span class="emphasis"><em>// <a href="bad_year.html#bad_yearconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="bad_year.html#id933145-bb">bad_year</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="bad_year.html#id933140-bb">public member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1172170"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1172174"></a><h3>
			
 
				-<a name="bad_yearconstruct-copy-destruct"></a><code class="computeroutput">bad_year</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id933145-bb"></a>bad_year();</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1172206"></a><h3>
			
 
				-<a name="id933140-bb"></a><code class="computeroutput">bad_year</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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--- a/doc/html/barrier.html
+++ b/doc/html/barrier.html
@@ -1,117 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
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				-<title>Class barrier</title>
			
 
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				-<link rel="start" href="index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="threads/reference.html#id759234" title="Header &lt;boost/thread/barrier.hpp&gt;">
			
 
				-<link rel="prev" href="threads/reference.html" title="Reference">
			
 
				-<link rel="next" href="condition.html" title="Class condition">
			
 
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				-</div>
			
 
				-<div class="refentry" lang="en">
			
 
				-<a name="barrier"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class barrier</span></h2>
			
 
				-<p>boost::barrier &#8212; <p>An object of class <a href="barrier.html" title="Class barrier">barrier</a> is a synchronization 
			
 
				-        primitive used  to cause a set of threads to wait until they each perform a 
			
 
				-        certain function or each reach a particular point in their execution.</p></p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> barrier : <span class="bold"><strong>private</strong></span> boost::noncopyable   <span class="emphasis"><em>// Exposition only</em></span>
			
 
				-{
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="barrier.html#barrierconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="barrier.html#id1008465-bb">barrier</a>(size_t);
			
 
				-  <a href="barrier.html#id683382-bb">~barrier</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="barrier.html#id942530-bb">waiting</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="barrier.html#id1178178-bb">wait</a>();
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1556579"></a><h2>Description</h2>
			
 
				-<p>When a barrier is created, it is initialized with a thread count N.
			
 
				-		The first N-1 calls to <code class="computeroutput">wait()</code> will all cause their threads to be blocked. 
			
 
				-		The Nth call to <code class="computeroutput">wait()</code> will allow all  of the waiting threads, including 
			
 
				-		the Nth thread, to be placed in a ready state.  The Nth call will also "reset"
			
 
				-		the barrier such that, if an additional N+1th call is made to <code class="computeroutput">wait()</code>, 
			
 
				-		it will be as though this were the first call to <code class="computeroutput">wait()</code>; in other
			
 
				-		words, the N+1th to 2N-1th calls to <code class="computeroutput">wait()</code> will cause their
			
 
				-		threads to be blocked, and the 2Nth call to <code class="computeroutput">wait()</code> will allow all of 
			
 
				-		the waiting threads, including the 2Nth thread, to be placed in a ready state
			
 
				-		and reset the barrier. This functionality allows the same set of N threads to re-use 
			
 
				-		a barrier object to  synchronize their execution at multiple points during their 
			
 
				-		execution.</p>
			
 
				-<p>See <a href="threads.html#threads.glossary" title="Glossary">Glossary</a> for definitions of thread 
			
 
				-		states <a href="threads.html#threads.glossary.thread-state">blocked</a>
			
 
				-		and <a href="threads.html#threads.glossary.thread-state">ready</a>.
			
 
				-		Note that "waiting" is a synonym for blocked.</p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1556658"></a><h3>
			
 
				-<a name="barrierconstruct-copy-destruct"></a><code class="computeroutput">barrier</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1008465-bb"></a>barrier(size_t count);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Constructs a <a href="barrier.html" title="Class barrier">barrier</a> object that 
			
 
				-        will cause <code class="computeroutput">count</code> threads to block on a call to <code class="computeroutput">wait()</code>.
			
 
				-        </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id683382-bb"></a>~barrier();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Destroys <code class="computeroutput">*this</code>. If threads are still executing 
			
 
				-		their <code class="computeroutput">wait()</code> operations, the behavior for these threads is undefined.
			
 
				-		</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1556757"></a><h3>
			
 
				-<a name="id942530-bb"></a><code class="computeroutput">barrier</code> waiting</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id1178178-bb"></a>wait();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Wait until N threads call <code class="computeroutput">wait()</code>, where
			
 
				-          N equals the <code class="computeroutput">count</code> provided to the constructor for the 
			
 
				-          barrier object.<p><span class="bold"><strong>Note</strong></span> that if the barrier is 
			
 
				-          destroyed before <code class="computeroutput">wait()</code> can return, the behavior is 
			
 
				-          undefined.</p><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    Exactly one of the N threads will receive a return value
			
 
				-		  of <code class="computeroutput">true</code>, the others will receive a value of <code class="computeroutput">false</code>. 
			
 
				-		  Precisely which thread receives the return value of <code class="computeroutput">true</code> will 
			
 
				-		  be implementation-defined. Applications can use this value to designate one 
			
 
				-		  thread as a leader that will take a certain action, and the other threads 
			
 
				-		  emerging from the barrier can wait for that action to take place.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2003 William E. Kempf</small></td>
			
 
				-</tr></table>
			
 
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				-<a name="base_time"></a><div class="titlepage"></div>
			
 
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				-<h2><span class="refentrytitle">Class template base_time</span></h2>
			
 
				-<p>boost::date_time::base_time &#8212; Representation of a precise moment in time, including the date. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, <span class="bold"><strong>typename</strong></span> time_system&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> base_time {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> T                               time_type;         
			
 
				-  <span class="bold"><strong>typedef</strong></span> time_system::time_rep_type      time_rep_type;     
			
 
				-  <span class="bold"><strong>typedef</strong></span> time_system::date_type          date_type;         
			
 
				-  <span class="bold"><strong>typedef</strong></span> time_system::date_duration_type date_duration_type;
			
 
				-  <span class="bold"><strong>typedef</strong></span> time_system::time_duration_type time_duration_type;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="base_time.html#base_timeconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="base_time.html#id796514-bb">base_time</a>(<span class="bold"><strong>const</strong></span> date_type &amp;, <span class="bold"><strong>const</strong></span> time_duration_type &amp;, 
			
 
				-            dst_flags = not_dst);
			
 
				-  <a href="base_time.html#id689610-bb">base_time</a>(special_values);
			
 
				-  <a href="base_time.html#id689624-bb">base_time</a>(<span class="bold"><strong>const</strong></span> time_rep_type &amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="base_time.html#id724655-bb">public member functions</a></em></span>
			
 
				-  <span class="type">date_type</span> <a href="base_time.html#id724660-bb">date</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_duration_type</span> <a href="base_time.html#id724673-bb">time_of_day</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">std::string</span> <a href="base_time.html#id724686-bb">zone_name</a>(<span class="bold"><strong>bool</strong></span> = false) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">std::string</span> <a href="base_time.html#id828497-bb">zone_abbrev</a>(<span class="bold"><strong>bool</strong></span> = false) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">std::string</span> <a href="base_time.html#id828535-bb">zone_as_posix_string</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id828553-bb">is_not_a_date_time</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id726580-bb">is_infinity</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id718630-bb">is_pos_infinity</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id718647-bb">is_neg_infinity</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id795507-bb">is_special</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id719180-bb"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> time_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="base_time.html#id718223-bb"><span class="bold"><strong>operator</strong></span>&lt;</a>(<span class="bold"><strong>const</strong></span> time_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_duration_type</span> <a href="base_time.html#id803846-bb"><span class="bold"><strong>operator</strong></span>-</a>(<span class="bold"><strong>const</strong></span> time_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id803874-bb"><span class="bold"><strong>operator</strong></span>+</a>(<span class="bold"><strong>const</strong></span> date_duration_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id803902-bb"><span class="bold"><strong>operator</strong></span>+=</a>(<span class="bold"><strong>const</strong></span> date_duration_type &amp;) ;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id721757-bb"><span class="bold"><strong>operator</strong></span>-</a>(<span class="bold"><strong>const</strong></span> date_duration_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id796021-bb"><span class="bold"><strong>operator</strong></span>-=</a>(<span class="bold"><strong>const</strong></span> date_duration_type &amp;) ;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id834553-bb"><span class="bold"><strong>operator</strong></span>+</a>(<span class="bold"><strong>const</strong></span> time_duration_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id834581-bb"><span class="bold"><strong>operator</strong></span>+=</a>(<span class="bold"><strong>const</strong></span> time_duration_type &amp;) ;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id834605-bb"><span class="bold"><strong>operator</strong></span>-</a>(<span class="bold"><strong>const</strong></span> time_duration_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">time_type</span> <a href="base_time.html#id796489-bb"><span class="bold"><strong>operator</strong></span>-=</a>(<span class="bold"><strong>const</strong></span> time_duration_type &amp;) ;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1117231"></a><h2>Description</h2>
			
 
				-<p>This class is a skeleton for the interface of a temporal type with a resolution that is higher than a day. It is intended that this class be the base class and that the actual time class be derived using the BN pattern. In this way, the derived class can make decisions such as 'should there be a default constructor' and what should it set its value to, should there be optional constructors say allowing only an time_durations that generate a time from a clock,etc. So, in fact multiple time types can be created for a time_system with different construction policies, and all of them can perform basic operations by only writing a copy constructor. Finally, compiler errors are also shorter.</p>
			
 
				-<p>The real behavior of the time class is provided by the time_system template parameter. This class must provide all the logic for addition, subtraction, as well as define all the interface types. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1117242"></a><h3>
			
 
				-<a name="base_timeconstruct-copy-destruct"></a><code class="computeroutput">base_time</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id796514-bb"></a>base_time(<span class="bold"><strong>const</strong></span> date_type &amp; day, <span class="bold"><strong>const</strong></span> time_duration_type &amp; td, 
			
 
				-          dst_flags dst = not_dst);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id689610-bb"></a>base_time(special_values sv);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id689624-bb"></a>base_time(<span class="bold"><strong>const</strong></span> time_rep_type &amp; rhs);</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1117309"></a><h3>
			
 
				-<a name="id724655-bb"></a><code class="computeroutput">base_time</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><span class="type">date_type</span> <a name="id724660-bb"></a>date() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_duration_type</span> <a name="id724673-bb"></a>time_of_day() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type">std::string</span> <a name="id724686-bb"></a>zone_name(<span class="bold"><strong>bool</strong></span> as_offset = false) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p>Optional bool parameter will return time zone as an offset (ie "+07:00"). Empty string is returned for classes that do not use a time_zone </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type">std::string</span> <a name="id828497-bb"></a>zone_abbrev(<span class="bold"><strong>bool</strong></span> as_offset = false) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p>Optional bool parameter will return time zone as an offset (ie "+07:00"). Empty string is returned for classes that do not use a time_zone </p>
			
 
				-</li>
			
 
				-<li><pre class="literallayout"><span class="type">std::string</span> <a name="id828535-bb"></a>zone_as_posix_string() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id828553-bb"></a>is_not_a_date_time() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id726580-bb"></a>is_infinity() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id718630-bb"></a>is_pos_infinity() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id718647-bb"></a>is_neg_infinity() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id795507-bb"></a>is_special() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id719180-bb"></a><span class="bold"><strong>operator</strong></span>==(<span class="bold"><strong>const</strong></span> time_type &amp; rhs) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id718223-bb"></a><span class="bold"><strong>operator</strong></span>&lt;(<span class="bold"><strong>const</strong></span> time_type &amp; rhs) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_duration_type</span> <a name="id803846-bb"></a><span class="bold"><strong>operator</strong></span>-(<span class="bold"><strong>const</strong></span> time_type &amp; rhs) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id803874-bb"></a><span class="bold"><strong>operator</strong></span>+(<span class="bold"><strong>const</strong></span> date_duration_type &amp; dd) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id803902-bb"></a><span class="bold"><strong>operator</strong></span>+=(<span class="bold"><strong>const</strong></span> date_duration_type &amp; dd) ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id721757-bb"></a><span class="bold"><strong>operator</strong></span>-(<span class="bold"><strong>const</strong></span> date_duration_type &amp; dd) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id796021-bb"></a><span class="bold"><strong>operator</strong></span>-=(<span class="bold"><strong>const</strong></span> date_duration_type &amp; dd) ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id834553-bb"></a><span class="bold"><strong>operator</strong></span>+(<span class="bold"><strong>const</strong></span> time_duration_type &amp; td) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id834581-bb"></a><span class="bold"><strong>operator</strong></span>+=(<span class="bold"><strong>const</strong></span> time_duration_type &amp; td) ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id834605-bb"></a><span class="bold"><strong>operator</strong></span>-(<span class="bold"><strong>const</strong></span> time_duration_type &amp; rhs) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">time_type</span> <a name="id796489-bb"></a><span class="bold"><strong>operator</strong></span>-=(<span class="bold"><strong>const</strong></span> time_duration_type &amp; td) ;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2005 CrystalClear Software, Inc</small></td>
			
 
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				-<a name="basic_command_line_parser"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template basic_command_line_parser</span></h2>
			
 
				-<p>boost::program_options::basic_command_line_parser &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> charT&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> basic_command_line_parser {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="basic_command_line_parser.html#basic_command_line_parserconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="basic_command_line_parser.html#id1138166-bb">basic_command_line_parser</a>(<span class="bold"><strong>const</strong></span> std::vector&lt; std::basic_string&lt; charT &gt; &gt; &amp;);
			
 
				-  <a href="basic_command_line_parser.html#id1009768-bb">basic_command_line_parser</a>(<span class="bold"><strong>int</strong></span>, charT *);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="basic_command_line_parser.html#id762142-bb">public member functions</a></em></span>
			
 
				-  <span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> <a href="basic_command_line_parser.html#id762147-bb">options</a>(<span class="bold"><strong>const</strong></span> <a href="options_description.html" title="Class options_description">options_description</a> &amp;) ;
			
 
				-  <span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> 
			
 
				-  <a href="basic_command_line_parser.html#id663575-bb">positional</a>(<span class="bold"><strong>const</strong></span> <a href="id683292.html" title="Class positional_options_description">positional_options_description</a> &amp;) ;
			
 
				-  <span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> <a href="basic_command_line_parser.html#id1031754-bb">style</a>(<span class="bold"><strong>int</strong></span>) ;
			
 
				-  <span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> <a href="basic_command_line_parser.html#id1008745-bb">extra_parser</a>(ext_parser) ;
			
 
				-  <span class="type"><a href="basic_parsed_options.html" title="Class template basic_parsed_options">basic_parsed_options</a>&lt; charT &gt;</span> <a href="basic_command_line_parser.html#id1140268-bb">run</a>() ;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1255000"></a><h2>Description</h2>
			
 
				-<p>Command line parser.</p>
			
 
				-<p>The class allows one to specify all the information needed for parsing and to parser the parse the command line. It is primarily needed to emulate named function parameters -- a regular function with 5 parameters will be hard to use and creating overloads with a smaller nuber of parameters will be confusing.</p>
			
 
				-<p>For the most common case, the function parse_command_line is a better alternative. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1255017"></a><h3>
			
 
				-<a name="basic_command_line_parserconstruct-copy-destruct"></a><code class="computeroutput">basic_command_line_parser</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1138166-bb"></a>basic_command_line_parser(<span class="bold"><strong>const</strong></span> std::vector&lt; std::basic_string&lt; charT &gt; &gt; &amp; args);</pre>
			
 
				-<p>Creates a command line parser for the specified arguments list. The 'args' parameter should not include program name. </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1009768-bb"></a>basic_command_line_parser(<span class="bold"><strong>int</strong></span> argc, charT * argv);</pre>
			
 
				-<p>Creates a command line parser for the specified arguments list. The parameter should be the same as passes to 'main'. </p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1255088"></a><h3>
			
 
				-<a name="id762142-bb"></a><code class="computeroutput">basic_command_line_parser</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> <a name="id762147-bb"></a>options(<span class="bold"><strong>const</strong></span> <a href="options_description.html" title="Class options_description">options_description</a> &amp; desc) ;</pre>
			
 
				-<p>Sets options descriptions to use. </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> 
			
 
				-<a name="id663575-bb"></a>positional(<span class="bold"><strong>const</strong></span> <a href="id683292.html" title="Class positional_options_description">positional_options_description</a> &amp; desc) ;</pre>
			
 
				-<p>Sets positional options description to use. </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> <a name="id1031754-bb"></a>style(<span class="bold"><strong>int</strong></span> ) ;</pre>
			
 
				-<p>Sets the command line style. </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><a href="basic_command_line_parser.html" title="Class template basic_command_line_parser">basic_command_line_parser</a> &amp;</span> <a name="id1008745-bb"></a>extra_parser(ext_parser ) ;</pre>
			
 
				-<p>Sets the extra parsers. </p>
			
 
				-</li>
			
 
				-<li><pre class="literallayout"><span class="type"><a href="basic_parsed_options.html" title="Class template basic_parsed_options">basic_parsed_options</a>&lt; charT &gt;</span> <a name="id1140268-bb"></a>run() ;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002-2004 Vladimir Prus</small></td>
			
 
				-</tr></table>
			
 
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--- a/doc/html/basic_option.html
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@@ -1,74 +0,0 @@
 
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				-<title>Class template basic_option</title>
			
 
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				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template basic_option</span></h2>
			
 
				-<p>boost::program_options::basic_option &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> charT&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> basic_option {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="basic_option.html#basic_optionconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="basic_option.html#id1114467-bb">basic_option</a>();
			
 
				-  <a href="basic_option.html#id1042744-bb">basic_option</a>(<span class="bold"><strong>const</strong></span> std::string &amp;, <span class="bold"><strong>const</strong></span> std::vector&lt; std::string &gt; &amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="basic_option.html#id1004663-bb">public member functions</a></em></span>
			
 
				-
			
 
				-  std::string string_key;
			
 
				-  int position_key;
			
 
				-  std::vector&lt; std::basic_string&lt; charT &gt; &gt; value;
			
 
				-  bool unregistered;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1252076"></a><h2>Description</h2>
			
 
				-<p>Option found in input source. Contains a key and a value. The key, in turn, can be a string (name of an option), or an integer (position in input source) -- in case no name is specified. The latter is only possible for command line. The template parameter specifies the type of char used for storing the option's value. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1252087"></a><h3>
			
 
				-<a name="basic_optionconstruct-copy-destruct"></a><code class="computeroutput">basic_option</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id1114467-bb"></a>basic_option();</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id1042744-bb"></a>basic_option(<span class="bold"><strong>const</strong></span> std::string &amp; string_key, 
			
 
				-             <span class="bold"><strong>const</strong></span> std::vector&lt; std::string &gt; &amp; value);</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1252147"></a><h3>
			
 
				-<a name="id1004663-bb"></a><code class="computeroutput">basic_option</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002-2004 Vladimir Prus</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/basic_parsed_options.html
+++ b/doc/html/basic_parsed_options.html
@@ -1,71 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Class template basic_parsed_options</title>
			
 
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				-<a name="basic_parsed_options"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template basic_parsed_options</span></h2>
			
 
				-<p>boost::program_options::basic_parsed_options &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> charT&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> basic_parsed_options {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="basic_parsed_options.html#basic_parsed_optionsconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="basic_parsed_options.html#id1081818-bb">basic_parsed_options</a>(<span class="bold"><strong>const</strong></span> <a href="options_description.html" title="Class options_description">options_description</a> *);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="basic_parsed_options.html#id1081812-bb">public member functions</a></em></span>
			
 
				-
			
 
				-  std::vector&lt; <a href="basic_option.html" title="Class template basic_option">basic_option</a>&lt; charT &gt; &gt; options;
			
 
				-  const  <a href="options_description.html" title="Class options_description">options_description</a> * description;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1255371"></a><h2>Description</h2>
			
 
				-<p>Results of parsing an input source. The primary use of this class is passing information from parsers component to value storage component. This class does not makes much sense itself. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1255380"></a><h3>
			
 
				-<a name="basic_parsed_optionsconstruct-copy-destruct"></a><code class="computeroutput">basic_parsed_options</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li><pre class="literallayout"><a name="id1081818-bb"></a>basic_parsed_options(<span class="bold"><strong>const</strong></span> <a href="options_description.html" title="Class options_description">options_description</a> * description);</pre></li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1255428"></a><h3>
			
 
				-<a name="id1081812-bb"></a><code class="computeroutput">basic_parsed_options</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1"></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1255446"></a><h3>Specializations</h3>
			
 
				-<div class="itemizedlist"><ul type="disc"><li><p><a href="id1002952-bb.html" title="Class basic_parsed_options&lt;wchar_t&gt;">Class basic_parsed_options&lt;wchar_t&gt;</a></p></li></ul></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002-2004 Vladimir Prus</small></td>
			
 
				-</tr></table>
			
 
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				-<p><b>Table of Contents</b></p>
			
 
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				-<dt><span class="chapter"><a href="bbv2/howto.html">21. How to use this document</a></span></dt>
			
 
				-<dt><span class="chapter"><a href="bbv2/installation.html">22. Installation</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/tutorial.html#bbv2.tutorial.hello">Hello, world</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/tutorial/conditions.html">Conditions and alternatives</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/advanced/jamfiles.html">Writing Jamfiles</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/advanced/build_process.html">The Build Process</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/advanced/differences_to_v1.html">Differences to Boost.Build V1</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="chapter"><a href="bbv2/extender.html">25. Extender Manual</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/extender.html#bbv2.extender.intro">Introduction</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/extending/targets.html">Target types</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/extending/rules.html">Main target rules</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/extending/toolset_modules.html">Toolset modules</a></span></dt>
			
 
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				-<dt><span class="chapter"><a href="bbv2/reference.html">26. Detailed reference</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/reference.html#bbv2.reference.general">General information</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/reference/jamfiles.html">Writing Jamfiles</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/reference/definitions.html">Definitions</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/reference/generators.html">Generators</a></span></dt>
			
 
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				-<dt><span class="section"><a href="bbv2/faq.html#id1708877">
			
 
				-        I'm getting "Duplicate name of actual target" error. What
			
 
				-        does it mean?
			
 
				-      </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/envar.html">
			
 
				-      Accessing environment variables
			
 
				-      </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/s03.html">
			
 
				-        How to control properties order?
			
 
				-      </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/s04.html">
			
 
				-      How to control the library order on Unix?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/external.html">Can I get output of external program as a variable in a Jamfile?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/s06.html">How to get the project-root location?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/s07.html">How to change compilation flags for one file?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/faq/dll-path.html">Why are the <code class="computeroutput">dll-path</code> and
			
 
				-    <code class="computeroutput">hardcode-dll-paths</code> properties useful?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/recipies/site-config.html">Targets in site-config.jam</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="appendix"><a href="bbv2/arch.html">B. Boost.Build v2 architecture</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="bbv2/arch.html#bbv2.arch.overview">Overview</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/arch/build.html">The build layer</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/arch/tools.html">The tools layer</a></span></dt>
			
 
				-<dt><span class="section"><a href="bbv2/arch/targets.html">Targets</a></span></dt>
			
 
				-</dl></dd>
			
 
				-</dl>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"><small><p>Last revised: December 29, 2004 at 22:17:38 GMT</p></small></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
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				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Chapter 24. User documentation</title>
			
 
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				-       /* I think that's just a bit too distracting for the reader... */
			
 
				-       /* background-attachment: fixed; */
			
 
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				-     }</style>
			
 
				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../bbv2.html" title="Part III. Boost.Build v2 User Manual">
			
 
				-<link rel="prev" href="tutorial/prebuilt.html" title="Prebuilt targets">
			
 
				-<link rel="next" href="advanced/jamfiles.html" title="Writing Jamfiles">
			
 
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				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../people/people.htm">People</a></td>
			
 
				-<td align="center"><a href="../../../more/faq.htm">FAQ</a></td>
			
 
				-<td align="center"><a href="../../../more/index.htm">More</a></td>
			
 
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				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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				-</div>
			
 
				-<div class="chapter" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title">
			
 
				-<a name="bbv2.advanced"></a>Chapter 24. User documentation</h2></div></div></div>
			
 
				-<div class="toc">
			
 
				-<p><b>Table of Contents</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="section"><a href="advanced.html#bbv2.advanced.configuration">Configuration</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/jamfiles.html">Writing Jamfiles</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="advanced/jamfiles.html#bbv2.advanced.overview">Overview</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/jamfiles.html#bbv2.advanced.targets">Main targets</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/jamfiles.html#bbv2.advanced.projects">Projects</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/jamfiles.html#bbv2.advanced.other-rules">Jamfile Utility Rules</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="advanced/build_process.html">The Build Process</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="advanced/build_process.html#id1704308">Build request</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/build_process.html#id1704350">Building a main target</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/build_process.html#id1704448">Building a project</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="advanced/builtins/targets.html">Builtin target types</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="advanced/builtins/targets.html#id1704505">Programs</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/builtins/targets.html#id1704568">Libraries</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/builtins/targets.html#bbv2.builtins.alias">Alias</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/builtins/targets.html#bbv2.builtins.stage">Installing</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/builtins/targets.html#bbv2.builtins.testing">Testing</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="advanced/builtins/features.html">Builtin features</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/differences_to_v1.html">Differences to Boost.Build V1</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="advanced/differences_to_v1.html#bbv2.advanced.differences_to_v1.configuration">Configuration</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/differences_to_v1.html#bbv2.advanced.differences_to_v1.jamfiles">Writing Jamfiles</a></span></dt>
			
 
				-<dt><span class="section"><a href="advanced/differences_to_v1.html#bbv2.advanced.differences_to_v1.build_process">Build process</a></span></dt>
			
 
				-</dl></dd>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<p>This section will provide the information necessary to create your own
			
 
				-  projects using Boost.Build. The information provided here is relatively
			
 
				-  high-level, and <a href="reference.html" title="Chapter 26. Detailed reference">Chapter 26, <i>Detailed reference</i></a> as
			
 
				-  well as the on-line help system must be used to obtain
			
 
				-  low-level documentation (see <a href="reference.html#bbv2.reference.init.options.help">???</a>).</p>
			
 
				-<p>Boost.Build actually consists of two parts - Boost.Jam, a
			
 
				-  build engine with its own interpreted language, and Boost.Build itself,
			
 
				-  implemented in Boost.Jam's language. The chain of events when
			
 
				-  you type <span><strong class="command">bjam</strong></span> on the command line is:
			
 
				-      </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><p>Boost.Jam tries to find Boost.Build and loads the top-level
			
 
				-          module. The exact process is described in <a href="reference.html#bbv2.reference.init" title="Initialization">the section called &#8220;Initialization&#8221;</a></p></li>
			
 
				-<li><p>The top-level module loads user-defined configuration
			
 
				-          files, <code class="filename">user-config.jam</code> and <code class="filename">site-config.jam</code>, which define
			
 
				-          available toolsets.</p></li>
			
 
				-<li><p>The Jamfile in the current directory is read. That in turn
			
 
				-          might cause reading of further Jamfiles. As a result, a tree of
			
 
				-          projects is created, with targets inside projects.</p></li>
			
 
				-<li><p>Finally, using the build request specified on the command line,
			
 
				-          Boost.Build decides which targets should be built, and how. That
			
 
				-          information is passed back to Boost.Jam, which takes care of
			
 
				-          actually running commands.</p></li>
			
 
				-</ol></div>
			
 
				-<p>So, to be able to successfully use Boost.Build, you need to know only
			
 
				-      three things:
			
 
				-      </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p><a href="advanced.html#bbv2.advanced.configuration" title="Configuration">
			
 
				-              How to configure Boost.Build</a></p></li>
			
 
				-<li><p><a href="advanced/jamfiles.html" title="Writing Jamfiles">
			
 
				-              How to write Jamfiles</a></p></li>
			
 
				-<li><p><a href="advanced/build_process.html" title="The Build Process">
			
 
				-              How the build process works</a></p></li>
			
 
				-<li><p>Some Basics about the Boost.Jam language. See the
			
 
				-          <a href="http://www.boost.org/tools/build/jam_src/index.html#jam_fundamentals" target="_top">Boost.Jam</a>
			
 
				-          and <a href="http://www.boost.org/tools/build/jam_src/jam.html" target="_top">Classic
			
 
				-          Jam</a> documentation.
			
 
				-          </p></li>
			
 
				-</ul></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.advanced.configuration"></a>Configuration</h2></div></div></div>
			
 
				-<p>The Boost.Build configuration is specified in the file
			
 
				-    <code class="filename">user-config.jam</code>. You can edit the one that comes with Boost.Build, or
			
 
				-    
			
 
				-    create a copy in your home directory and edit that. (See the <a href="reference.html#bbv2.reference.init.config" title="Table 26.1. Search paths for configuration files">reference</a> for the exact search
			
 
				-    paths.) The primary function of that file is to declare which compilers
			
 
				-    and other tools are available. The simplest syntax to configure a tool is:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using <em class="replaceable"><code>tool-name</code></em> ;        
			
 
				-</pre>
			
 
				-<p>
			
 
				-      The <code class="computeroutput">using</code> rule is given a name of tool, and will make that tool
			
 
				-      available to Boost.Build. For example, <code class="computeroutput">using gcc ;</code> will make the gcc compiler
			
 
				-      available.      
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Since nothing but a tool name is specified, Boost.Build will
			
 
				-      pick some default settings.  For example, it will use the
			
 
				-      <span><strong class="command">gcc</strong></span> executable found in the
			
 
				-      <code class="envar">PATH</code>, or look in some known installation
			
 
				-      locations. In most cases, this strategy works automatically. In
			
 
				-      case you have several versions of a compiler, it's installed in
			
 
				-      some unusual location, or you need to tweak its configuration,
			
 
				-      you'll need to pass additional parameters to the
			
 
				-      <code class="computeroutput">using</code> rule.  The parameters to
			
 
				-      <code class="computeroutput">using</code> can be different for each
			
 
				-      tool.  You can obtain specific documentation for any tool's
			
 
				-      configuration parameters by invoking
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bjam --help <em class="replaceable"><code>tool-name</code></em>.init         
			
 
				-</pre>
			
 
				-<p>
			
 
				-      That said, for all the compiler toolsets Boost.Build supports
			
 
				-      out-of-the-box, the list of parameters to
			
 
				-      <code class="computeroutput">using</code> is the same: <em class="parameter"><code>toolset-name</code></em>, <em class="parameter"><code>version</code></em>, <em class="parameter"><code>invocation-command</code></em>, and <em class="parameter"><code>options</code></em>.
			
 
				-      </p>
			
 
				-<p>The <em class="parameter"><code>version</code></em>
			
 
				-    parameter identifies the toolset version, in case you have
			
 
				-    several installed. It can have any form you like, but
			
 
				-    it's recommended that you use a numeric identifier like
			
 
				-    <code class="literal">7.1</code>.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      The <em class="parameter"><code>invocation-command</code></em>
			
 
				-      parameter is the command that must be executed to run the
			
 
				-      compiler. This parameter can usually be omitted if the compiler
			
 
				-      executable
			
 
				-      </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>has its &#8220;usual
			
 
				-      name&#8221; and is in the <code class="envar">PATH</code>,
			
 
				-      or</p></li>
			
 
				-<li><p>was installed in a standard
			
 
				-      &#8220;installation directory&#8221;,
			
 
				-      or</p></li>
			
 
				-<li><p>can be found through a global mechanism like the
			
 
				-      Windows registry.</p></li>
			
 
				-</ul></div>
			
 
				-<p>
			
 
				-
			
 
				-      For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using msvc : 7.1 ;
			
 
				-using gcc ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-If the compiler can be found in the <code class="envar">PATH</code> but only by a
			
 
				-nonstandard name, you can just supply that name:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using gcc : : g++-3.2 ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-Otherwise, it might be necessary to supply the complete path to the
			
 
				-compiler executable:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using msvc : : Z:/Programs/Microsoft Visual Studio/vc98/bin/cl ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-Some Boost.Build toolsets will use that path to take additional
			
 
				-actions required before invoking the compiler, such as calling
			
 
				-vendor-supplied scripts to set up its required environment variables.
			
 
				-</p>
			
 
				-<p>To configure several versions of a toolset, simply invoke
			
 
				-    the <code class="computeroutput">using</code> rule multiple times:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using gcc : 3.3 ;
			
 
				-using gcc : 3.4 : g++-3.4 ;
			
 
				-using gcc : 3.2 : g++-3.2 ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Note that in the first call to
			
 
				-        <code class="computeroutput">using</code>, the compiler found in the
			
 
				-        <code class="envar">PATH</code> will be used, and there's no need to
			
 
				-        explicitly specify the command.
			
 
				-    </p>
			
 
				-<p>As shown above, both the <em class="parameter"><code>version</code></em> and <em class="parameter"><code>invocation-command</code></em> parameters are
			
 
				-    optional, but there's an important restriction: if you configure
			
 
				-    the same toolset more than once, you must pass the <em class="parameter"><code>version</code></em>
			
 
				-    parameter every time. For example, the following is not allowed:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using gcc ;
			
 
				-using gcc : 3.4 : g++-3.4 ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      because the first <code class="computeroutput">using</code> call does
			
 
				-      not specify a <em class="parameter"><code>version</code></em>.
			
 
				-    </p>
			
 
				-<p>The <em class="parameter"><code>options</code></em>
			
 
				-    parameter is used to fine-tune the configuration. All of
			
 
				-    Boost.Build's standard compiler toolsets accept properties of the
			
 
				-    four builtin features <code class="varname">cflags</code>,
			
 
				-    <code class="varname">cxxflags</code>, <code class="varname">compileflags</code> and
			
 
				-    <code class="varname">linkflags</code> as <em class="parameter"><code>options</code></em> specifying flags that will be
			
 
				-    always passed to the corresponding tools. Values of the
			
 
				-    <code class="varname">cflags</code> feature are passed directly to the C
			
 
				-    compiler, values of the <code class="varname">cxxflags</code> feature are
			
 
				-    passed directly to the C++ compiler, and values of the
			
 
				-    <code class="varname">compileflags</code> feature are passed to both. For
			
 
				-    example, to configure a <span><strong class="command">gcc</strong></span> toolset so that it
			
 
				-    always generates 64-bit code you could write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using gcc : 3.4 : : &lt;compileflags&gt;-m64 &lt;linkflags&gt;-m64 ;
			
 
				-</pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="tutorial/prebuilt.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../bbv2.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="advanced/jamfiles.html"><img src="../images/next.png" alt="Next"></a>
			
 
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				-</body>
			
 
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				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>The Build Process</title>
			
 
				-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
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				-body { background-image: url('http://docbook.sourceforge.net/release/images/draft.png');
			
 
				-       background-repeat: no-repeat;
			
 
				-       background-position: top left;
			
 
				-       /* The following properties make the watermark "fixed" on the page. */
			
 
				-       /* I think that's just a bit too distracting for the reader... */
			
 
				-       /* background-attachment: fixed; */
			
 
				-       /* background-position: center center; */
			
 
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				-<link rel="start" href="../../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../advanced.html" title="Chapter 24. User documentation">
			
 
				-<link rel="prev" href="jamfiles.html" title="Writing Jamfiles">
			
 
				-<link rel="next" href="builtins/targets.html" title="Builtin target types">
			
 
				-</head>
			
 
				-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
			
 
				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../../people/people.htm">People</a></td>
			
 
				-<td align="center"><a href="../../../../more/faq.htm">FAQ</a></td>
			
 
				-<td align="center"><a href="../../../../more/index.htm">More</a></td>
			
 
				-</table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="jamfiles.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../advanced.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="builtins/targets.html"><img src="../../images/next.png" alt="Next"></a>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.advanced.build_process"></a>The Build Process</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="build_process.html#id1704308">Build request</a></span></dt>
			
 
				-<dt><span class="section"><a href="build_process.html#id1704350">Building a main target</a></span></dt>
			
 
				-<dt><span class="section"><a href="build_process.html#id1704448">Building a project</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>When you've described your targets, you want Boost.Build to run the
			
 
				-      right tools and create the needed targets. 
			
 
				-      
			
 
				-      This section will describe
			
 
				-      two things: how you specify what to build, and how the main targets are
			
 
				-      actually constructed.
			
 
				-    </p>
			
 
				-<p>The most important thing to note is that in Boost.Build, unlike
			
 
				-      other build tools, the targets you declare do not correspond to specific
			
 
				-      files. What you declare in a Jamfile is more like a &#8220;metatarget.&#8221; 
			
 
				-      
			
 
				-      Depending on the properties you specify on the command line,
			
 
				-      each metatarget will produce a set of real targets corresponding
			
 
				-      to the requested properties. It is quite possible that the same
			
 
				-      metatarget is built several times with different properties,
			
 
				-       
			
 
				-      producing different files.
			
 
				-    </p>
			
 
				-<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Tip</h3>
			
 
				-<p>
			
 
				-        This means that for Boost.Build, you cannot directly obtain a build
			
 
				-        variant from a Jamfile. There could be several variants requested by the
			
 
				-        user, and each target can be built with different properties. 
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1704308"></a>Build request</h3></div></div></div>
			
 
				-<p>
			
 
				-        The command line specifies which targets to build and with which
			
 
				-        properties. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bjam app1 lib1//lib1 toolset=gcc variant=debug optimization=full
			
 
				-</pre>
			
 
				-<p>
			
 
				-        would build two targets, "app1" and "lib1//lib1" with the specified
			
 
				-        properties. You can refer to any targets, using 
			
 
				-        <a href="../reference/definitions.html#bbv2.reference.ids" title="Target identifiers and references">target id</a> and specify arbitrary
			
 
				-        properties. Some of the properties are very common, and for them the name
			
 
				-        of the property can be omitted. For example, the above can be written as:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bjam app1 lib1//lib1 gcc debug optimization=full
			
 
				-</pre>
			
 
				-<p>
			
 
				-        The complete syntax, which has some additional shortcuts, is
			
 
				-        described in <a href="../reference.html#bbv2.reference.commandline" title="Command line">the section called &#8220;Command line&#8221;</a>.
			
 
				-        </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1704350"></a>Building a main target</h3></div></div></div>
			
 
				-<p>When you request, directly or indirectly, a build of a main target
			
 
				-        with specific requirements, the following steps are made. Some brief
			
 
				-        explanation is provided, and more details are given in <a href="../reference/buildprocess.html" title="Build process">the section called &#8220;Build process&#8221;</a>.
			
 
				-        </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><p>Applying default build. If the default-build
			
 
				-          property of a target specifies a value of a feature that is not
			
 
				-          present in the build request, that value is added.</p></li>
			
 
				-<li><p>Selecting the main target alternative to use. For
			
 
				-              each alternative we look how many properties are present both in
			
 
				-              alternative's requirements, and in build request. The
			
 
				-              alternative with large number of matching properties is selected.
			
 
				-            </p></li>
			
 
				-<li><p>Determining "common" properties. 
			
 
				-          
			
 
				-              The build request
			
 
				-              is <a href="../reference/definitions.html#bbv2.reference.variants.proprefine" title="Property refinement">refined</a>
			
 
				-              with target's requirements. 
			
 
				-              
			
 
				-              The conditional properties in
			
 
				-              requirements are handled as well. Finally, default values of
			
 
				-              features are added.
			
 
				-            </p></li>
			
 
				-<li><p>Building targets referred by the sources list and
			
 
				-              dependency properties. The list of sources and the properties
			
 
				-              can refer to other target using <a href="../reference/definitions.html#bbv2.reference.ids" title="Target identifiers and references">target references</a>. For each
			
 
				-              reference, we take all <a href="../reference/definitions.html#bbv2.reference.features.attributes.propagated">propagated</a>
			
 
				-              properties, refine them by explicit properties specified in the
			
 
				-              target reference, and pass the resulting properties as build
			
 
				-              request to the other target.              
			
 
				-            </p></li>
			
 
				-<li><p>Adding the usage requirements produced when building
			
 
				-              dependencies to the "common" properties. When dependencies are
			
 
				-              built in the previous step, they return 
			
 
				-              
			
 
				-              both the set of created
			
 
				-              "real" targets, and usage requirements. The usage requirements
			
 
				-              are added to the common properties and the resulting property
			
 
				-              set will be used for building the current target.              
			
 
				-            </p></li>
			
 
				-<li><p>Building the target using generators. To convert the
			
 
				-              sources to the desired type, Boost.Build uses "generators" ---
			
 
				-              objects that correspond to tools like compilers and
			
 
				-              linkers. Each generator declares what type of targets it
			
 
				-              
			
 
				-              can
			
 
				-              produce and what type of sources it requires. Using this
			
 
				-              information, Boost.Build determines which generators must be run
			
 
				-              to produce a specific target from specific sources. When
			
 
				-              generators are run, they return the "real" targets.
			
 
				-            </p></li>
			
 
				-<li><p>Computing the usage requirements to be returned. The
			
 
				-          conditional properties in usage requirements are expanded 
			
 
				-          
			
 
				-          and the
			
 
				-          result is returned.</p></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1704448"></a>Building a project</h3></div></div></div>
			
 
				-<p>Often, a user builds a complete project, not just one main
			
 
				-      target. In fact, invoking <span><strong class="command">bjam</strong></span> without
			
 
				-      arguments
			
 
				-      
			
 
				-      builds the project defined in the current
			
 
				-      directory.</p>
			
 
				-<p>When a project is built, the build request is passed without
			
 
				-        modification to all main targets in that project.
			
 
				-        
			
 
				-        It's is possible to
			
 
				-        prevent implicit building of a target in a project with the
			
 
				-        <code class="computeroutput">explicit</code> rule:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-explicit hello_test ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        would cause the <code class="computeroutput">hello_test</code> target to be built only if
			
 
				-        explicitly requested by the user or by some other target.
			
 
				-      </p>
			
 
				-<p>The Jamfile for a project can include a number of
			
 
				-      <code class="computeroutput">build-project</code> rule calls
			
 
				-      
			
 
				-      that specify additional projects
			
 
				-      to be built.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.advanced.builtins.features"></a>Builtin features</h2></div></div></div>
			
 
				-<div class="variablelist"><dl>
			
 
				-<dt><span class="term"><code class="literal">variant</code></span></dt>
			
 
				-<dd>
			
 
				-<p>
			
 
				-            A feature that combines several low-level features, making
			
 
				-            it easy to request common build configurations.
			
 
				-          </p>
			
 
				-<p><span class="bold"><strong>Allowed values:</strong></span><code class="literal">debug</code>, <code class="literal">release</code>,
			
 
				-            <code class="literal">profile</code></p>
			
 
				-<p>The value <code class="literal">debug</code> expands to</p>
			
 
				-<pre class="programlisting">
			
 
				-            &lt;optimization&gt;off &lt;debug-symbols&gt;on &lt;inlining&gt;off &lt;runtime-debugging&gt;on
			
 
				-          </pre>
			
 
				-<p>The value <code class="literal">release</code> expands to</p>
			
 
				-<pre class="programlisting">
			
 
				-            &lt;optimization&gt;speed &lt;debug-symbols&gt;off &lt;inlining&gt;full &lt;runtime-debugging&gt;off
			
 
				-          </pre>
			
 
				-<p>The value <code class="literal">profile</code> expands to the same as
			
 
				-            <code class="literal">release</code>, plus:</p>
			
 
				-<pre class="programlisting">
			
 
				-            &lt;profiling&gt;on &lt;debug-symbols&gt;on
			
 
				-          </pre>
			
 
				-<p><span class="bold"><strong>Rationale:</strong></span> Runtime
			
 
				-          debugging is on in debug builds to suit the expectations of
			
 
				-          people used to various IDEs. 
			
 
				-          
			
 
				-          It's assumed other folks don't
			
 
				-          have any specific expectation in this point.
			
 
				-          </p>
			
 
				-</dd>
			
 
				-<dt>
			
 
				-<a name="bbv2.advanced.builtins.features.link"></a><span class="term"><code class="literal">link</code></span>
			
 
				-</dt>
			
 
				-<dd>
			
 
				-<p>
			
 
				-            A feature that controls how libraries are built.
			
 
				-          </p>
			
 
				-<p><span class="bold"><strong>Allowed values:</strong></span><code class="literal">shared</code>,
			
 
				-            <code class="literal">static</code></p>
			
 
				-</dd>
			
 
				-<dt><span class="term"><code class="literal">source</code></span></dt>
			
 
				-<dd>
			
 
				-            The <code class="computeroutput">&lt;source&gt;X</code> feature has the same effect on building a target
			
 
				-            as putting X in the list of sources. The feature
			
 
				-            is sometimes more convenient:
			
 
				-            
			
 
				-            you can put <code class="computeroutput">&lt;source&gt;X</code> in the
			
 
				-            requirements for a project and <code class="filename">X</code> will
			
 
				-            be included as a source in all of the project's main
			
 
				-            targets.
			
 
				-            </dd>
			
 
				-<dt><span class="term"><code class="literal">library</code></span></dt>
			
 
				-<dd>
			
 
				-            This feature is equivalent to the &lt;source&gt; feature, and exists
			
 
				-            for backward compatibility reasons.
			
 
				-          </dd>
			
 
				-<dt><span class="term"><a name="bbv2.builtin.features.dependency"></a><code class="literal">dependency</code></span></dt>
			
 
				-<dd>
			
 
				-            Introduces a dependency on the target named by the
			
 
				-            value of this feature (so it will be brought
			
 
				-            up-to-date whenever the target being declared is), and
			
 
				-            adds its usage requirements to the build properties 
			
 
				-            
			
 
				-            of the target being declared.  The dependency is not used
			
 
				-            in any other way. The primary use case is when you want
			
 
				-            the usage requirements (such as <code class="computeroutput">#include</code> paths) of some
			
 
				-            library to be applied, but don't want to link to it.
			
 
				-            </dd>
			
 
				-<dt><span class="term"><a name="bbv2.builtin.features.use"></a><code class="literal">use</code></span></dt>
			
 
				-<dd>
			
 
				-            Introduces a dependency on the target named by the
			
 
				-            value of this feature (so it will be brought
			
 
				-            up-to-date whenever the target being declared is), and
			
 
				-            adds its usage requirements to the build properties 
			
 
				-            
			
 
				-            of the target being declared.  The dependency is not used
			
 
				-            in any other way. The primary use case is when you want
			
 
				-            the usage requirements (such as <code class="computeroutput">#include</code> paths) of some
			
 
				-            library to be applied, but don't want to link to it.
			
 
				-            </dd>
			
 
				-<dt><span class="term"><code class="literal">dll-path</code></span></dt>
			
 
				-<dd>
			
 
				-            Specify an additional directory where the system should
			
 
				-            look for shared libraries when the executable or shared
			
 
				-            library is run. This feature only affects Unix
			
 
				-            compilers. Plase see <a href="../../faq/dll-path.html" title="Why are the dll-path and
			
 
				-    hardcode-dll-paths properties useful?
			
 
				-    ">the section called &#8220;Why are the <code class="computeroutput">dll-path</code> and
			
 
				-    <code class="computeroutput">hardcode-dll-paths</code> properties useful?
			
 
				-    &#8221;</a>
			
 
				-            in <a href="../../faq.html" title="Chapter 27. Frequently Asked Questions">Chapter 27, <i>Frequently Asked Questions</i></a> for details.
			
 
				-          </dd>
			
 
				-<dt><span class="term"><code class="literal">hardcode-dll-paths</code></span></dt>
			
 
				-<dd>
			
 
				-<p>
			
 
				-            Controls automatic generation of dll-path properties.
			
 
				-          </p>
			
 
				-<p><span class="bold"><strong>Allowed values:</strong></span><code class="literal">true</code>, <code class="literal">false</code>.  This property
			
 
				-            is specific to Unix systems. If an executable is built with
			
 
				-            <code class="computeroutput">&lt;hardcode-dll-paths&gt;true</code>, the generated binary
			
 
				-            will contain the list of all the paths to the used shared
			
 
				-            libraries. As the result, the executable can be run without
			
 
				-            changing system paths to shared libraries or installing the
			
 
				-            libraries to system paths. This 
			
 
				-            
			
 
				-            is very convenient during
			
 
				-            development. Plase see the <a href="../../faq/dll-path.html" title="Why are the dll-path and
			
 
				-    hardcode-dll-paths properties useful?
			
 
				-    ">FAQ entry</a> for details.
			
 
				-            Note that on Mac OSX, the paths are unconditionally hardcoded by
			
 
				-            the linker, and it's not possible to disable that behaviour.
			
 
				-          </p>
			
 
				-</dd>
			
 
				-<dt>
			
 
				-<span class="term"><code class="literal">cflags</code>, </span><span class="term"><code class="literal">cxxflags</code>, </span><span class="term"><code class="literal">linkflags</code></span>
			
 
				-</dt>
			
 
				-<dd>
			
 
				-            The value of those features is passed without modification to the
			
 
				-            corresponding tools. For <code class="computeroutput">cflags</code> that's both C and C++
			
 
				-            compilers, for <code class="computeroutput">cxxflags</code> that's C++ compiler and for
			
 
				-            <code class="computeroutput">linkflags</code> that's linker. The features are handy when
			
 
				-            you're trying to do something special that cannot be achieved by
			
 
				-            higher-level feature in Boost.Build.
			
 
				-          </dd>
			
 
				-</dl></div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-</div>
			
 
				-</body>
			
 
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				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="targets.html#id1704505">Programs</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#id1704568">Libraries</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#bbv2.builtins.alias">Alias</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#bbv2.builtins.stage">Installing</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#bbv2.builtins.testing">Testing</a></span></dt>
			
 
				-</dl></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1704505"></a>Programs</h3></div></div></div>
			
 
				-<p>Programs are created using the <code class="computeroutput">exe</code> rule, which
			
 
				-        follows the <a href="../jamfiles.html#bbv2.main-target-rule-syntax">common
			
 
				-          syntax</a>. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp some_library.lib /some_project//library 
			
 
				-          : &lt;threading&gt;multi 
			
 
				-          ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        This will create an executable file from the sources -- in this case,
			
 
				-        one C++ file, one library file present in the same directory, and
			
 
				-        another library that is created by Boost.Build. Generally, sources
			
 
				-        can include C and C++ files, object files and libraries. Boost.Build
			
 
				-        will automatically try to convert targets of other types.
			
 
				-      </p>
			
 
				-<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Tip</h3>
			
 
				-<p>         
			
 
				-          On Windows, if an application uses dynamic libraries, and both
			
 
				-          the application and the libraries are built by Boost.Build, its not
			
 
				-          possible to immediately run the application, because the
			
 
				-          <code class="literal">PATH</code> environment variable should include the path
			
 
				-          to the libraries. It means you have to either add the paths
			
 
				-          manually, or place the application and the libraries to the same
			
 
				-          directory, for example using the <a href="targets.html#bbv2.builtins.stage" title="Installing">
			
 
				-            stage</a> rule.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1704568"></a>Libraries</h3></div></div></div>
			
 
				-<p>Libraries are created using the <code class="computeroutput">lib</code> rule, which
			
 
				-        follows the <a href="../jamfiles.html#bbv2.main-target-rule-syntax">common
			
 
				-          syntax</a>. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib helpers : helpers.cpp : &lt;include&gt;boost : : &lt;include&gt;. ;
			
 
				-</pre>
			
 
				-<p>In the most common case, the <code class="computeroutput">lib</code> creates a library
			
 
				-        from the specified sources. Depending on the value of
			
 
				-        &lt;link&gt; feature the library will be either static or
			
 
				-        shared. There are two other cases. First is when the library is
			
 
				-        installed somewhere in compiler's search paths, and should be
			
 
				-        searched by the compiler (typically, using the <code class="option">-l</code>
			
 
				-        option). The second case is where the library is available as a 
			
 
				-        prebuilt file and the full path is known.          
			
 
				-        </p>
			
 
				-<p>
			
 
				-        The syntax for these case is given below:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib z : : &lt;name&gt;z &lt;search&gt;/home/ghost ;            
			
 
				-lib compress : : &lt;file&gt;/opt/libs/compress.a ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        The <code class="computeroutput">name</code> property specifies the name that should be
			
 
				-        passed to the <code class="option">-l</code> option, and the <code class="computeroutput">file</code>
			
 
				-        property specifies the file location. The <code class="varname">search</code> feature
			
 
				-        specifies paths in which to search for the library. That feature can
			
 
				-        be specified several times, or it can be omitted, in which case only
			
 
				-        default compiler paths will be searched.
			
 
				-      </p>
			
 
				-<p>The difference between using the <code class="varname">file</code> feature as
			
 
				-        opposed to the <code class="varname">name</code> feature together with the
			
 
				-        <code class="varname">search</code> feature is that <code class="varname">file</code> is more
			
 
				-        precise. A specific file will be used. On the other hand, the
			
 
				-        <code class="varname">search</code> feature only adds a library path, and the
			
 
				-        <code class="varname">name</code> feature gives the basic name of the library. The
			
 
				-        search rules are specific to the linker. For example, given these
			
 
				-        definition:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib a : : &lt;variant&gt;release &lt;file&gt;/pool/release/a.so ;
			
 
				-lib a : : &lt;variant&gt;debug &lt;file&gt;/pool/debug/a.so ;
			
 
				-lib b : : &lt;variant&gt;release &lt;file&gt;/pool/release/b.so ;
			
 
				-lib b : : &lt;variant&gt;debug &lt;file&gt;/pool/debug/b.so ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        It's possible to use release version of <code class="computeroutput">a</code> and debug
			
 
				-        version of <code class="computeroutput">b</code>. Had we used the <code class="varname">name</code> and
			
 
				-        <code class="varname">search</code> features, the linker would always pick either
			
 
				-        release or debug versions.
			
 
				-        </p>
			
 
				-<p>
			
 
				-        For convenience, the following syntax is allowed:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib z ;
			
 
				-lib gui db aux ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-          and is does exactly the same as:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib z : : &lt;name&gt;z ;            
			
 
				-lib gui : : &lt;name&gt;gui ;            
			
 
				-lib db : : &lt;name&gt;db ;            
			
 
				-lib aux : : &lt;name&gt;aux ;            
			
 
				-</pre>
			
 
				-<p>When a library uses another library you should put that another
			
 
				-        library in the list of sources. This will do the right thing in all
			
 
				-        cases. For portability, you should specify library dependencies even
			
 
				-        for searched and prebuilt libraries, othewise, static linking on
			
 
				-        Unix won't work. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib z ;
			
 
				-lib png : z : &lt;name&gt;png ;
			
 
				-</pre>
			
 
				-<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Note</h3>
			
 
				-<p>When a library (say, <code class="computeroutput">a</code>), that has another
			
 
				-          library, (say, <code class="computeroutput">b</code>) 
			
 
				-          
			
 
				-          is linked dynamically, the <code class="computeroutput">b</code>
			
 
				-          library will be incorporated 
			
 
				-          
			
 
				-          in <code class="computeroutput">a</code>. (If <code class="computeroutput">b</code>
			
 
				-          is dynamic library as well, then <code class="computeroutput">a</code> will only refer to
			
 
				-          it, and not include any extra code.) 
			
 
				-          
			
 
				-          When the <code class="computeroutput">a</code>
			
 
				-          library is linked statically, Boost.Build will assure that all
			
 
				-          executables that link to <code class="computeroutput">a</code> will also link to
			
 
				-          <code class="computeroutput">b</code>.
			
 
				-        </p>
			
 
				-</div>
			
 
				-<p>One feature of Boost.Build that is very important for libraries
			
 
				-        is usage requirements. 
			
 
				-        
			
 
				-        For example, if you write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib helpers : helpers.cpp : : : &lt;include&gt;. ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        then the compiler include path for all targets that use
			
 
				-        <code class="computeroutput">helpers</code> will contain the directory 
			
 
				-        
			
 
				-        where the target is defined.path to "helpers.cpp". The user
			
 
				-        only needs to add <code class="computeroutput">helpers</code> to the list of sources,
			
 
				-        and needn't consider the requirements its use imposes on a
			
 
				-        dependent target. This feature greatly simplifies Jamfiles.
			
 
				-        </p>
			
 
				-<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Note</h3>
			
 
				-<p>If you don't want shared libraries to include all libraries
			
 
				-          that are specified in sources (especially statically linked ones),
			
 
				-          you'd need to use the following:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib b : a.cpp ;
			
 
				-lib a : a.cpp : &lt;use&gt;b : : &lt;library&gt;b ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-          This specifies that <code class="computeroutput">a</code> uses <code class="computeroutput">b</code>, and causes
			
 
				-          all executables that link to <code class="computeroutput">a</code> also link to
			
 
				-          <code class="computeroutput">b</code>. In this case, even for shared linking, the
			
 
				-          <code class="computeroutput">a</code> library won't even refer to <code class="computeroutput">b</code>.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.builtins.alias"></a>Alias</h3></div></div></div>
			
 
				-<p>The <code class="computeroutput">alias</code> rule follows the <a href="../jamfiles.html#bbv2.main-target-rule-syntax">common syntax</a>. For
			
 
				-        example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-alias core : im reader writer ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        will build the sources
			
 
				-        
			
 
				-        and return
			
 
				-        
			
 
				-        the generated source targets
			
 
				-        without modification. 
			
 
				-      </p>
			
 
				-<p>
			
 
				-        The <code class="computeroutput">alias</code> rule is a convenience tool. If you often build
			
 
				-        the same group of targets at the same time, you can define an alias
			
 
				-        to save typing.        
			
 
				-      </p>
			
 
				-<p>
			
 
				-        Another use of the <code class="computeroutput">alias</code> rule is to change build
			
 
				-        properties. For example, if you always want static linking for a
			
 
				-        specific C++ Boost library, you can write the following:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-alias threads : /boost/thread//boost_thread : &lt;link&gt;static ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        and use only the <code class="computeroutput">threads</code> alias in your Jamfiles.
			
 
				-        </p>
			
 
				-<p>
			
 
				-        You can also specify usage requirements for the
			
 
				-        <code class="computeroutput">alias</code> target. If you write the following:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-alias header_only_library : : : :  &lt;include&gt;/usr/include/header_only_library ; 
			
 
				-</pre>
			
 
				-<p>
			
 
				-        then using <code class="computeroutput">header_only_library</code> in sources will only add an
			
 
				-        include path. Also note that when there are some sources, their usage
			
 
				-        requirements are propagated, too. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib lib : lib.cpp : : : &lt;include&gt;. ;
			
 
				-alias lib_alias ; 
			
 
				-exe main : main.cpp lib_alias ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        will compile <code class="filename">main.cpp</code> with the additional include.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.builtins.stage"></a>Installing</h3></div></div></div>
			
 
				-<p>For installing a built target you should use the
			
 
				-        <code class="computeroutput">install</code> rule, which follows the <a href="../jamfiles.html#bbv2.main-target-rule-syntax">common syntax</a>. For
			
 
				-        example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-install dist : hello helpers ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        will cause the targets <code class="computeroutput">hello</code> and <code class="computeroutput">helpers</code> to
			
 
				-        be moved to the <code class="filename">dist</code> directory, relative to
			
 
				-        Jamfile's directory. The directory can
			
 
				-        be changed with the <code class="computeroutput">location</code> property:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-install dist : hello helpers : &lt;location&gt;/usr/bin ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        While you can achieve the same effect by changing the target name to
			
 
				-        <code class="filename">/usr/bin</code>, using the <code class="computeroutput">location</code>
			
 
				-        property is better, because it allows you to use a memnonic target
			
 
				-        name.
			
 
				-      </p>
			
 
				-<p>The <code class="computeroutput">location</code> property is especially handy when the location
			
 
				-        is not fixed, but depends on build variant or environment variables:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-install dist : hello helpers : &lt;variant&gt;release:&lt;location&gt;dist/release
			
 
				-                             &lt;variant&gt;debug:&lt;location&gt;dist/debug ;
			
 
				-install dist2 : hello helpers : &lt;location&gt;$(DIST) ;
			
 
				-</pre>
			
 
				-<p> 
			
 
				-        See also <a href="../../reference/definitions.html#bbv2.reference.variants.propcond" title="Conditional properties">conditional
			
 
				-          properties</a> and <a href="../../faq/envar.html" title="
			
 
				-      Accessing environment variables
			
 
				-      ">environment variables</a></p>
			
 
				-<p>
			
 
				-        Specifying the names of all libraries to install can be boring. The
			
 
				-        <code class="computeroutput">install</code> allows you to specify only the top-level executable
			
 
				-        targets to install, and automatically install all dependencies:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-install dist : hello 
			
 
				-           : &lt;install-dependencies&gt;on &lt;install-type&gt;EXE
			
 
				-             &lt;install-type&gt;LIB
			
 
				-           ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        will find all targets that <code class="computeroutput">hello</code> depends on, and install
			
 
				-        all of the which are either executables or libraries. More
			
 
				-        specifically, for each target, other targets that were specified as
			
 
				-        sources or as dependency properties, will be recursively found.  One
			
 
				-        exception is that targets referred with the <a href="features.html#bbv2.builtin.features.use"><code class="computeroutput">use</code></a> feature
			
 
				-        are not considered, because that feature is typically used to refer to
			
 
				-        header-only libraries.
			
 
				-        If the set of target types is specified, only targets of that type
			
 
				-        will be installed, otherwise, all found target will be installed.
			
 
				-      </p>
			
 
				-<p>The <a href="targets.html#bbv2.builtins.alias" title="Alias"><code class="computeroutput">alias</code></a>
			
 
				-      rule can be used when targets must be installed into several
			
 
				-      directories:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-install install : install-bin install-lib ;
			
 
				-install install-bin : applications : /usr/bin ;
			
 
				-install install-lib : helper : /usr/lib ;
			
 
				-</pre>
			
 
				-<p>Because the <code class="computeroutput">install</code> rule just copies targets, most 
			
 
				-    free features <sup>[<a name="id1705185" href="#ftn.id1705185">6</a>]</sup>
			
 
				-    have no effect when used in requirements of the <code class="computeroutput">install</code>. 
			
 
				-    The only two which matter are  
			
 
				-    <a href="features.html#bbv2.builtin.features.dependency"><code class="varname">dependency</code></a> and, on Unix,
			
 
				-    <code class="varname">dll-path</code>. 
			
 
				-    </p>
			
 
				-<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Note</h3>
			
 
				-<p>
			
 
				-        (Unix specific). On Unix, executables built with Boost.Build typically
			
 
				-        contain the list of paths to all used dynamic libraries. For
			
 
				-        installing, this is not desired, so Boost.Build relinks the executable
			
 
				-        with an empty list of paths. You can also specify additional paths for
			
 
				-        installed executables with the <code class="varname">dll-path</code> feature.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.builtins.testing"></a>Testing</h3></div></div></div>
			
 
				-<p>Boost.Build has convenient support for running unit tests. The
			
 
				-        simplest way is the <code class="computeroutput">unit-test</code> rule, which follows the
			
 
				-        <a href="../jamfiles.html#bbv2.main-target-rule-syntax">common syntax</a>. For
			
 
				-        example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-unit-test helpers_test : helpers_test.cpp helpers ;
			
 
				-</pre>
			
 
				-<p>The <code class="computeroutput">unit-test</code> rule behaves like the
			
 
				-        <code class="computeroutput">exe</code> rule, but after the executable is created it is
			
 
				-        run. If the executable returns an error code, the build system will also
			
 
				-        return an error and will try running the executable on the next
			
 
				-        invocation until it runs successfully. This behaviour ensures that you
			
 
				-        can't miss a unit test failure.
			
 
				-      </p>
			
 
				-<p>There are rules for more elaborate testing: <code class="computeroutput">compile</code>,
			
 
				-        <code class="computeroutput">compile-fail</code>, <code class="computeroutput">run</code> and
			
 
				-        <code class="computeroutput">run-fail</code>. They are more suitable for automated testing, and
			
 
				-        are not covered here.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="footnotes">
			
 
				-<br><hr width="100" align="left">
			
 
				-<div class="footnote"><p><sup>[<a name="ftn.id1705185" href="#id1705185">6</a>] </sup>see the definition of "free" in <a href="../../reference/definitions.html#bbv2.reference.features.attributes" title="Feature Attributes">the section called &#8220;Feature Attributes&#8221;</a>.</p></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="../build_process.html"><img src="../../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../../advanced.html"><img src="../../../images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../images/home.png" alt="Home"></a><a accesskey="n" href="features.html"><img src="../../../images/next.png" alt="Next"></a>
			
 
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				-</body>
			
 
				-</html>
			
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				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
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				-<link rel="start" href="../../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../advanced.html" title="Chapter 24. User documentation">
			
 
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				-<link rel="next" href="../extender.html" title="Chapter 25. Extender Manual">
			
 
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				-<table cellpadding="2" width="100%">
			
 
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				-<td align="center"><a href="../../../../index.htm">Home</a></td>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.advanced.differences_to_v1"></a>Differences to Boost.Build V1</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="differences_to_v1.html#bbv2.advanced.differences_to_v1.configuration">Configuration</a></span></dt>
			
 
				-<dt><span class="section"><a href="differences_to_v1.html#bbv2.advanced.differences_to_v1.jamfiles">Writing Jamfiles</a></span></dt>
			
 
				-<dt><span class="section"><a href="differences_to_v1.html#bbv2.advanced.differences_to_v1.build_process">Build process</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>While Boost.Build V2 is based on the same ideas as Boost.Build V1,
			
 
				-    some of the syntax was changed, and some new important features were
			
 
				-    added. This chapter describes most of the changes.</p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.differences_to_v1.configuration"></a>Configuration</h3></div></div></div>
			
 
				-<p>In V1, there were two methods to configure a toolset. One was to
			
 
				-      set some environment variable, or use the <code class="option">-s</code> command line option to set
			
 
				-      a variable inside BJam. 
			
 
				-      
			
 
				-      Another method was to create a new toolset module that would set
			
 
				-      the variables and then invoke the base toolset. Neither method
			
 
				-      is necessary now: the <code class="computeroutput">using</code> rule provides a consistent way to
			
 
				-      initialize a toolset, 
			
 
				-      
			
 
				-      including several versions. See <a href="../advanced.html#bbv2.advanced.configuration" title="Configuration">the section called &#8220;Configuration&#8221;</a> for details.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.differences_to_v1.jamfiles"></a>Writing Jamfiles</h3></div></div></div>
			
 
				-<p>Probably one of the most important differences in V2 Jamfiles is
			
 
				-      the use of project requirements. In V1, if several targets had the same
			
 
				-      requirements (for example, a common <code class="computeroutput">#include</code> path), it was necessary to
			
 
				-      manually write the requirements or use a helper rule or template target. In V2, the
			
 
				-      common properties can be specified with the <code class="computeroutput">requirements</code> project
			
 
				-      attribute, as documented in <a href="jamfiles.html#bbv2.advanced.projects" title="Projects">the section called &#8220;Projects&#8221;</a>.
			
 
				-      </p>
			
 
				-<p><a href="../tutorial/libs.html" title="Dependent Targets">Usage requirements</a>
			
 
				-      also help to simplify Jamfiles. 
			
 
				-      
			
 
				-      If a library requires
			
 
				-      all clients to use specific <code class="computeroutput">#include</code> paths or macros when compiling 
			
 
				-      code that depends on the library, that information can be cleanly
			
 
				-      represented.</p>
			
 
				-<p>The difference between <code class="computeroutput">lib</code> and <code class="computeroutput">dll</code> targets in V1 is completely
			
 
				-      eliminated in V2. There's only one library target type, <code class="computeroutput">lib</code>, which can create
			
 
				-      either static or shared libraries depending on the value of the 
			
 
				-        <a href="builtins/features.html#bbv2.advanced.builtins.features.link"><code class="varname">&lt;link&gt;</code>
			
 
				-      feature</a>. If your target should be only built in one way, you
			
 
				-      can add <code class="computeroutput">&lt;link&gt;shared</code> or <code class="computeroutput">&lt;link&gt;static</code> to its requirements.
			
 
				-      </p>
			
 
				-<p>The syntax for referring to other targets was changed a bit. While
			
 
				-      in V1 one would use:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp &lt;lib&gt;../foo/bar ;
			
 
				-</pre>
			
 
				-<p> 
			
 
				-        the V2 syntax is:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp ../foo//bar ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Note that you don't need to specify the type of other target, but the
			
 
				-        last element should be separated from the others by a double slash to indicate that
			
 
				-        you're referring to target <code class="filename">bar</code> in project <code class="filename">../foo</code>, and not to
			
 
				-        project <code class="filename">../foo/bar</code>.
			
 
				-        </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.differences_to_v1.build_process"></a>Build process</h3></div></div></div>
			
 
				-<p>The command line syntax in V2 is completely different. For example
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bjam -sTOOLS=msvc -sBUILD=release some_target
			
 
				-</pre>
			
 
				-<p>
			
 
				-        now becomes:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bjam toolset=msvc variant=release some_target
			
 
				-</pre>
			
 
				-<p>
			
 
				-        or, using implicit features, just:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-bjam msvc release some_target
			
 
				-</pre>
			
 
				-<p>
			
 
				-      See <a href="../reference.html#bbv2.reference.commandline" title="Command line">the reference</a> for a
			
 
				-      complete description of the syntax.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.advanced.jamfiles"></a>Writing Jamfiles</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="jamfiles.html#bbv2.advanced.overview">Overview</a></span></dt>
			
 
				-<dt><span class="section"><a href="jamfiles.html#bbv2.advanced.targets">Main targets</a></span></dt>
			
 
				-<dt><span class="section"><a href="jamfiles.html#bbv2.advanced.projects">Projects</a></span></dt>
			
 
				-<dt><span class="section"><a href="jamfiles.html#bbv2.advanced.other-rules">Jamfile Utility Rules</a></span></dt>
			
 
				-</dl></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.overview"></a>Overview</h3></div></div></div>
			
 
				-<p>Jamfiles are the thing that is most important to the user,
			
 
				-      
			
 
				-      bacause they declare the targets that should be built. 
			
 
				-      
			
 
				-      Jamfiles are also used for organizing targets&#8212;
			
 
				-      
			
 
				-      each Jamfile is a separate project
			
 
				-      
			
 
				-      that can be built independently from the other projects.
			
 
				-      </p>
			
 
				-<p>Jamfiles mostly contain calls to Boost.Build functions that do
			
 
				-        all the work, specifically:
			
 
				-        </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p><a href="jamfiles.html#bbv2.advanced.targets" title="Main targets">declare main
			
 
				-                targets</a></p></li>
			
 
				-<li><p><a href="jamfiles.html#bbv2.advanced.projects" title="Projects">define
			
 
				-            project properties</a></p></li>
			
 
				-<li><p><a href="jamfiles.html#bbv2.advanced.other-rules" title="Jamfile Utility Rules">do various other
			
 
				-            things</a></p></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.targets"></a>Main targets</h3></div></div></div>
			
 
				-<p><a name="bbv2.advanced.targets.main"></a>
			
 
				-        A <em class="firstterm">Main target</em> is a user-defined named
			
 
				-        entity that can be built, for example an  executable file.
			
 
				-        
			
 
				-        Declaring a main target is usually done using one of the main
			
 
				-        target rules described in <a href="builtins/targets.html" title="Builtin target types">the section called &#8220;Builtin target types&#8221;</a>.  The user can also declare
			
 
				-        custom main target rules as shown in <a href="../extending/rules.html" title="Main target rules">the section called &#8220;Main target rules&#8221;</a>.
			
 
				-</p>
			
 
				-<p>Most main target rules in Boost.Build can be invoked with
			
 
				-      a common syntax:</p>
			
 
				-<a name="bbv2.main-target-rule-syntax"></a><pre class="programlisting"><em class="replaceable"><code>rule-name</code></em>&#8194;<em class="replaceable"><code>main-target-name</code></em>
			
 
				-    : <em class="replaceable"><code>sources...</code></em>
			
 
				-    : <em class="replaceable"><code>requirements...</code></em> 
			
 
				-    : <em class="replaceable"><code>default-build...</code></em>
			
 
				-    : <em class="replaceable"><code>usage-requirements...</code></em>
			
 
				-    ;
			
 
				-</pre>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<em class="parameter"><code>main-target-name</code></em> is the name used
			
 
				-            to request the target on command line and to use it from
			
 
				-            other main targets. A main target name may contain
			
 
				-            alphanumeric characters, dashes
			
 
				-            (&#8216;<code class="computeroutput">-</code>&#8217;), and underscores
			
 
				-            (&#8216;<code class="computeroutput">_</code>&#8217;).
			
 
				-          </li>
			
 
				-<li>
			
 
				-<em class="parameter"><code>sources</code></em> is the list of source files and other main
			
 
				-            targets that must be combined. 
			
 
				-          </li>
			
 
				-<li>
			
 
				-<em class="parameter"><code>requirements</code></em> is the list of properties that must always
			
 
				-            be present when this main target is built.
			
 
				-          </li>
			
 
				-<li>
			
 
				-<em class="parameter"><code>default-build</code></em> is the list of properties that will be used
			
 
				-            unless some other value of the same feature is already
			
 
				-            specified, e.g. on the command line or by propogation from a dependent target.
			
 
				-          </li>
			
 
				-<li>
			
 
				-<em class="parameter"><code>usage-requirements</code></em> is the list of properties that will be
			
 
				-            propagated to all main targets that use this one, i.e. to all its
			
 
				-            dependents.
			
 
				-          </li>
			
 
				-</ul></div>
			
 
				-<p>          
			
 
				-        Some main target rules have a shorter list of parameters;
			
 
				-        consult their documentation for details.
			
 
				-      </p>
			
 
				-<p>Note that the actual requirements, default-build and
			
 
				-      usage-requirements attributes for a target are obtained by
			
 
				-      combining the explicitly specified ones with those specified for
			
 
				-      the project where a target is declared.
			
 
				-      </p>
			
 
				-<p>The list of sources specifies what should be processed to
			
 
				-      get the resulting targets. Most of the time, it's just a list of
			
 
				-      files. Sometimes, you'll want to automatically construct the
			
 
				-      list of source files rather than having to spell it out
			
 
				-      manually, in which case you can use the
			
 
				-      <code class="computeroutput">glob</code> rule. Here are two examples:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp ;           # a.cpp is the only source file
			
 
				-exe b : [ glob *.cpp ] ;  # all .cpp files in this directory are sources 
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Unless you specify a files with absolute path, the name is
			
 
				-        considered relative to the source directory -- which is typically
			
 
				-        the directory where the Jamfile is located, but can be changed as
			
 
				-        described in <a href="jamfiles.html#bbv2.advanced.projects.attributes.projectrule" title="">the section called &#8220;Projects&#8221;</a>.
			
 
				-      </p>
			
 
				-<p>
			
 
				-        The list of sources can also refer to other main targets.
			
 
				-        Targets in the same project can be referred to by name, while
			
 
				-        targets in other projects need to be qualified with a directory or a symbolic
			
 
				-        project name. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib helper : helper.cpp ;
			
 
				-exe a : a.cpp helper ;
			
 
				-exe b : b.cpp ..//utils ;
			
 
				-exe c : c.cpp /boost/program_options//program_options ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        The first exe uses the library defined in the same
			
 
				-        project. The second one uses some target (most likely library)
			
 
				-        defined by Jamfile one level higher. Finally, the third target
			
 
				-        uses some <a href="http://boost.org" target="_top">C++ Boost</a>
			
 
				-        library, referring to it by its absolute symbolic name. More
			
 
				-        information about it can be found in <a href="../tutorial/libs.html" title="Dependent Targets">the section called &#8220;Dependent Targets&#8221;</a> and <a href="../reference/definitions.html#bbv2.reference.ids" title="Target identifiers and references">the section called &#8220;Target identifiers and references&#8221;</a>.
			
 
				-      </p>
			
 
				-<p>Requirements are the properties that should always be present when
			
 
				-        building a target. Typically, they are includes and defines:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp : &lt;include&gt;/opt/boost &lt;define&gt;MY_DEBUG ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        In special circumstances, 
			
 
				-        
			
 
				-        other properties can be used, for example if
			
 
				-        a library can only be built statically, or a file can't be compiled
			
 
				-        with optimization due to a compiler bug, one can use
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib util : util.cpp : &lt;link&gt;static ;
			
 
				-obj main : main.cpp : &lt;optimization&gt;off ;
			
 
				-</pre>
			
 
				-<p>Sometimes requirements are necessary only for a specific
			
 
				-      compiler or build variant.  <a href="../reference/definitions.html#bbv2.reference.variants.propcond" title="Conditional properties">Conditional
			
 
				-      properties</a> can be used in that case: 
			
 
				-      </p>
			
 
				-<pre class="programlisting">
			
 
				-lib util : util.cpp : &lt;toolset&gt;msvc:&lt;link&gt;static ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Whenever <code class="computeroutput">&lt;toolset&gt;msvc</code> property is
			
 
				-        in build properties, the <code class="computeroutput">&lt;link&gt;static</code> property will
			
 
				-        be included as well. Conditional requirements can be &#8220;chained&#8221;:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib util : util.cpp : &lt;toolset&gt;msvc:&lt;link&gt;static 
			
 
				-                      &lt;link&gt;static:&lt;define&gt;STATIC_LINK ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        will set of static link
			
 
				-        
			
 
				-        and the <code class="computeroutput">STATIC_LINK</code> define on the
			
 
				-        <code class="computeroutput">msvc</code> toolset.
			
 
				-        </p>
			
 
				-<p>The <code class="varname">default-build</code> parameter
			
 
				-      
			
 
				-      is a set of properties to be used if the build request does
			
 
				-      not otherwise specify a value for features in the set. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp : : &lt;threading&gt;multi ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        would build a multi-threaded target in unless the user
			
 
				-        explicitly requests a single-threaded version. The difference between
			
 
				-        requirements and default-build is that requirements cannot be
			
 
				-        overriden in any way.</p>
			
 
				-<p>A target of the same name can be declared several times,  in which
			
 
				-        case each declaration is called an
			
 
				-        <em class="firstterm">alternative</em>. When the target is built, one of
			
 
				-        the alternatives will be selected and used.  Alternatives need not be
			
 
				-        defined by the same main target rule.  For example,
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib helpers : helpers.hpp ;                 # a header-only library
			
 
				-alias helpers : helpers.lib : &lt;toolset&gt;msvc ; # except on msvc
			
 
				-</pre>
			
 
				-<p>The actual commands used to build any given main target can differ greatly from
			
 
				-        platform to platform. For example, you might have different lists
			
 
				-        of sources for different compilers, or different options for those
			
 
				-        compilers. Two approaches to this are explained in the 
			
 
				-        <a href="../tutorial/conditions.html" title="Conditions and alternatives">tutorial</a>.
			
 
				-        </p>
			
 
				-<p>Sometimes a main target is really needed only by some other main
			
 
				-        target. For example, a rule that declares a test-suite uses a main
			
 
				-        target 
			
 
				-        
			
 
				-        that represent test, but those main targets are rarely needed
			
 
				-        by themselves.
			
 
				-        </p>
			
 
				-<p>It is possible to declare a target inline, i.e. the "sources"
			
 
				-        parameter may include calls to other main rules. For example:</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp 
			
 
				-    [ obj helpers : helpers.cpp : &lt;optimization&gt;off ] ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Will cause "helpers.cpp" to be always compiled without
			
 
				-        optimization. 
			
 
				-        
			
 
				-        When referring to an inline main target, its declared name
			
 
				-        must be prefixed by its parent target's name and two dots. In
			
 
				-        the example above, to build only helpers, one should run
			
 
				-        <code class="computeroutput">bjam hello..helpers</code>.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.projects"></a>Projects</h3></div></div></div>
			
 
				-<p>As mentioned before, targets are grouped into projects,
			
 
				-      and each Jamfile is a separate project. Projects are useful
			
 
				-      because they allow us to group related targets together, define
			
 
				-      properties common to all those targets, and assign a symbolic
			
 
				-      name to the project that can be used in referring to its
			
 
				-      targets. 
			
 
				-      </p>
			
 
				-<p>Projects are named using the
			
 
				-      <code class="computeroutput">project</code> rule, which has the
			
 
				-      following syntax:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-project <em class="replaceable"><code>id</code></em> : <em class="replaceable"><code>attributes</code></em> ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Here, <em class="replaceable"><code>attributes</code></em> is a sequence of
			
 
				-        rule arguments, each of which begins with an attribute-name
			
 
				-        and is followed by any number of build properties.  
			
 
				-        The list
			
 
				-        of attribute names along with its handling is also shown in
			
 
				-        the table below. For example, it is possible to write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-project tennis 
			
 
				-    : requirements &lt;threading&gt;multi 
			
 
				-    : default-build release
			
 
				-    ;
			
 
				-</pre>
			
 
				-<p>The possible attributes are listed below.</p>
			
 
				-<p><span class="emphasis"><em>Project id</em></span> is a short way to denote a project, as
			
 
				-        opposed to the Jamfile's pathname. It is a hierarchical path,
			
 
				-        unrelated to filesystem, such as "boost/thread". <a href="../reference/definitions.html#bbv2.reference.ids" title="Target identifiers and references">Target references</a> make use of project ids to
			
 
				-        specify a target.</p>
			
 
				-<p><span class="emphasis"><em>Source location</em></span> specifies the directory where sources
			
 
				-        for the project are located.</p>
			
 
				-<p><span class="emphasis"><em>Project requirements</em></span> are requirements that apply to
			
 
				-        all the targets in the projects as well as all subprojects.</p>
			
 
				-<p><span class="emphasis"><em>Default build</em></span> is the build request that should be
			
 
				-        used when no build request is specified explicitly.</p>
			
 
				-<p><a name="bbv2.advanced.projects.attributes.projectrule"></a>
			
 
				-        The default values for those attributes are
			
 
				-        given in the table below.
			
 
				-
			
 
				-        </p>
			
 
				-<div class="table">
			
 
				-<a name="id1703973"></a><p class="title"><b>Table 24.1. </b></p>
			
 
				-<table class="table" summary="">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Attribute</th>
			
 
				-<th>Name for the 'project' rule</th>
			
 
				-<th>Default value</th>
			
 
				-<th>Handling by the 'project' rule</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td>Project id</td>
			
 
				-<td>none</td>
			
 
				-<td>none</td>
			
 
				-<td>Assigned from the first parameter of the 'project' rule.
			
 
				-                  It is assumed to denote absolute project id.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>Source location</td>
			
 
				-<td><code class="literal">source-location</code></td>
			
 
				-<td>The location of jamfile for the project</td>
			
 
				-<td>Sets to the passed value</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>Requirements</td>
			
 
				-<td><code class="literal">requirements</code></td>
			
 
				-<td>The parent's requirements</td>
			
 
				-<td>The parent's requirements are refined with the passed
			
 
				-                  requirement and the result is used as the project
			
 
				-                  requirements.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>Default build</td>
			
 
				-<td><code class="literal">default-build</code></td>
			
 
				-<td>none</td>
			
 
				-<td>Sets to the passed value</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>Build directory</td>
			
 
				-<td><code class="literal">build-dir</code></td>
			
 
				-<td>Empty if the parent has no build directory set.
			
 
				-                Otherwise, the parent's build directory with with the
			
 
				-                relative path from parent to the current project
			
 
				-                appended to it.
			
 
				-                </td>
			
 
				-<td>Sets to the passed value, interpreted as relative to the
			
 
				-                  project's location.</td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table>
			
 
				-</div>
			
 
				-<p>Besides defining projects and main targets, Jamfiles
			
 
				-      commonly invoke utility rules such as
			
 
				-      <code class="computeroutput">constant</code> and
			
 
				-      <code class="computeroutput">path-constant</code>, which inject a
			
 
				-      specified Boost.Jam variable setting into this project's Jamfile
			
 
				-      module and those of all its subprojects.  See <a href="jamfiles.html#bbv2.advanced.other-rules" title="Jamfile Utility Rules">the section called &#8220;Jamfile Utility Rules&#8221;</a> for a complete description
			
 
				-      of these utility rules.  Jamfiles are regular Boost.Jam source
			
 
				-      files and Boost.Build modules, so naturally they can contain any kind of Boost.Jam code,
			
 
				-      including rule definitions.
			
 
				-      </p>
			
 
				-<p>Each subproject inherits attributes, constants and rules
			
 
				-      from its parent project, which is defined by the nearest
			
 
				-      Jamfile in an ancestor directory above
			
 
				-      the subproject.  The top-level project is declared in a file
			
 
				-      called <code class="filename">Jamroot</code> rather than
			
 
				-      <code class="filename">Jamfile</code>.  When loading a project,
			
 
				-      Boost.Build looks for either <code class="filename">Jamroot</code> or
			
 
				-      <code class="computeroutput">Jamfile</code>.  They are handled indentically, except
			
 
				-      that if the file is called <code class="filename">Jamroot</code>, the
			
 
				-      search for a parent project is not performed.
			
 
				-      </p>
			
 
				-<p>Even when building in a subproject directory, parent
			
 
				-      project files are always loaded before those of their
			
 
				-      subprojects, so that every definition made in a parent project
			
 
				-      is always available to its children. The loading order of any
			
 
				-      other projects is unspecified.  Even if one project refers to
			
 
				-      another via <a href="../../"><code class="computeroutput">use-project</code></a>,
			
 
				-      or a target reference, no specific order should be assumed.
			
 
				-      </p>
			
 
				-<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Note</h3>
			
 
				-<p>Giving the root project the special name
			
 
				-        &#8220;<code class="filename">Jamroot</code>&#8221; ensures that
			
 
				-        Boost.Build won't misinterpret a directory above it as the
			
 
				-        project root just because the directory contains a Jamfile.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.advanced.other-rules"></a>Jamfile Utility Rules</h3></div></div></div>
			
 
				-<p>The following table describes utility rules that can be
			
 
				-      used in Jamfiles. Detailed information for any of these rules can
			
 
				-      be obtained by running:
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-bjam --help project.<em class="replaceable"><code>rulename</code></em></pre>
			
 
				-<div class="table">
			
 
				-<a name="id1704194"></a><p class="title"><b>Table 24.2. </b></p>
			
 
				-<table class="table" summary="">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Rule</th>
			
 
				-<th>Semantics</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><a href="jamfiles.html#bbv2.advanced.projects.attributes.projectrule">project</a></td>
			
 
				-<td>Define this project's symbolic ID or attributes.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><a href="../../">use-project</a></td>
			
 
				-<td>Make another project known so that it can be referred to by symbolic ID.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><a href="../../">build-project</a></td>
			
 
				-<td>Cause another project to be built when this one is built.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><a href="../../">explicit</a></td>
			
 
				-<td>State that a target should be built only by explicit
			
 
				-                request.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>glob</td>
			
 
				-<td>Translate a list of shell-style wildcards into a
			
 
				-              corresponding list of files.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>constant</td>
			
 
				-<td>Injects a variable setting into this project's
			
 
				-              Jamfile module and those of all its subprojects.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>path-constant</td>
			
 
				-<td>Injects a variable set to a path value into
			
 
				-              this project's Jamfile module and those of all its subprojects.
			
 
				-              If the value is a relative path it will be adjusted for
			
 
				-              each subproject so that it refers to the same
			
 
				-              directory.</td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table>
			
 
				-</div>
			
 
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				-<a name="bbv2.arch"></a>Appendix B. Boost.Build v2 architecture</h2></div></div></div>
			
 
				-<div class="toc">
			
 
				-<p><b>Table of Contents</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="section"><a href="arch.html#bbv2.arch.overview">Overview</a></span></dt>
			
 
				-<dt><span class="section"><a href="arch/build.html">The build layer</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="arch/build.html#bbv2.arch.metatargets">Metatargets</a></span></dt>
			
 
				-<dt><span class="section"><a href="arch/build.html#bbv2.arch.virtual">Virtual targets</a></span></dt>
			
 
				-<dt><span class="section"><a href="arch/build.html#bbv2.arch.properties"></a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="arch/tools.html">The tools layer</a></span></dt>
			
 
				-<dt><span class="section"><a href="arch/targets.html">Targets</a></span></dt>
			
 
				-<dd><dl><dt><span class="section"><a href="arch/targets.html#bbv2.arch.depends">Dependency scanning</a></span></dt></dl></dd>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<div class="sidebar"><p>This document is work-in progress. Don't expect much from it
			
 
				-      yet.</p></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.arch.overview"></a>Overview</h2></div></div></div>
			
 
				-<p>The Boost.Build code is structured in four different components:
			
 
				-    "kernel", "util", "build" and "tools". The first two are relatively
			
 
				-    uninteresting, so we'll focus on the remaining pair. The "build" component
			
 
				-    provides classes necessary to declare targets, determine which properties
			
 
				-    should be used for their building, and for creating the dependency
			
 
				-    graph. The "tools" component provides user-visible functionality. It
			
 
				-    mostly allows to declare specific kind of main targets, and declare
			
 
				-    avaiable tools, which are then used when creating the dependency graph.
			
 
				-    </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.arch.build"></a>The build layer</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="build.html#bbv2.arch.metatargets">Metatargets</a></span></dt>
			
 
				-<dt><span class="section"><a href="build.html#bbv2.arch.virtual">Virtual targets</a></span></dt>
			
 
				-<dt><span class="section"><a href="build.html#bbv2.arch.properties"></a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>The build layer has just four main parts -- metatargets (abstract targets),
			
 
				-        virtual targets, generators and properties. 
			
 
				-        </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>Metatargets (see the "targets.jam" module) represent
			
 
				-              all the user-defined entities which can be built. The "meta" prefix
			
 
				-              signify that they don't really corrspond to files -- depending of
			
 
				-              build request, they can produce different set of
			
 
				-              files. Metatargets are created when Jamfiles are loaded. Each
			
 
				-              metagarget has a <code class="computeroutput">generate</code> method which is given a
			
 
				-              property set and produces virtual targets for the passed properties.
			
 
				-            </p></li>
			
 
				-<li><p>Virtual targets (see the "virtual-targets.jam"
			
 
				-              module) correspond to the atomic things which can be updated --
			
 
				-              most typically files. 
			
 
				-            </p></li>
			
 
				-<li><p>Properties are just (name, value) pairs, specified
			
 
				-              by the user and describing how the targets should be
			
 
				-              built. Properties are stored using the <code class="computeroutput">property-set</code> class.
			
 
				-              </p></li>
			
 
				-<li><p>Generators are the objects which encapsulate tools
			
 
				-              -- they can take a list of source virtual targets and produce new
			
 
				-              virtual targets from them.
			
 
				-            </p></li>
			
 
				-</ul></div>
			
 
				-<p>The build process includes those steps:
			
 
				-        </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><p>Top-level code calls the <code class="computeroutput">generate</code>
			
 
				-              method of a metatarget with some properties.  </p></li>
			
 
				-<li><p>The metatarget combines the requested properties
			
 
				-              with requirements and passes the result, together with the list
			
 
				-              of sources, to the <code class="computeroutput">generators.construct</code>
			
 
				-              function</p></li>
			
 
				-<li><p>A generator appropriate for the build properties is
			
 
				-              selected and its <code class="computeroutput">run</code> method is
			
 
				-              called. The method returns a list of virtual targets
			
 
				-            </p></li>
			
 
				-<li><p>The targets are returned to the top level code. They
			
 
				-              are converted into bjam targets (via
			
 
				-              <code class="computeroutput">virtual-target.actualize</code>) and passed to bjam for building.
			
 
				-            </p></li>
			
 
				-</ol></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.arch.metatargets"></a>Metatargets</h3></div></div></div>
			
 
				-<p>There are several classes derived from "abstract-target". The
			
 
				-          "main-target" class represents top-level main target, the "project-target"
			
 
				-          acts like container for all main targets, and "basic-target" class is a
			
 
				-          base class for all further target types.
			
 
				-        </p>
			
 
				-<p>Since each main target can have several alternatives, all top-level
			
 
				-          target objects are just containers, referring to "real" main target
			
 
				-          classes. The type is that container is "main-target". For example, given:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-alias a ;
			
 
				-lib a : a.cpp : &lt;toolset&gt;gcc ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-          we would have one-top level instance of "main-target-class", which will
			
 
				-          contain one instance of "alias-target-class" and one instance of
			
 
				-          "lib-target-class". The "generate" method of "main-target" decides
			
 
				-          which of the alternative should be used, and call "generate" on the
			
 
				-          corresponding instance.
			
 
				-        </p>
			
 
				-<p>Each alternative is a instance of a class derived from
			
 
				-          "basic-target". The "basic-target.generate" does several things that are
			
 
				-          always should be done:
			
 
				-          </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>Determines what properties should be used for building the
			
 
				-                target. This includes looking at requested properties, requirements,
			
 
				-                and usage requirements of all sources.</p></li>
			
 
				-<li><p>Builds all sources</p></li>
			
 
				-<li><p>Computes the usage requirements which should be passes back.</p></li>
			
 
				-</ul></div>
			
 
				-<p>
			
 
				-          For the real work of constructing virtual target, a new method
			
 
				-          "construct" is called.
			
 
				-        </p>
			
 
				-<p>The "construct" method can be implemented in any way by classes
			
 
				-          derived from "basic-target", but one specific derived class plays the
			
 
				-          central role -- "typed-target". That class holds the desired type of file
			
 
				-          to be produces, and calls the generators modules to do the job.
			
 
				-        </p>
			
 
				-<p>This means that a specific metatarget subclass may avoid using
			
 
				-          generators at all. However, this is deprecated and we're trying to
			
 
				-          eliminate all such subsclasses at the moment.
			
 
				-        </p>
			
 
				-<p>Note that the <code class="filename">build/targets.jam</code> file contains
			
 
				-            an UML diagram which might help.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.arch.virtual"></a>Virtual targets</h3></div></div></div>
			
 
				-<p>Virtual targets correspond to the atomic things which can be
			
 
				-          updated. Each virtual target can be assigned an updating action --
			
 
				-          instance of the <code class="computeroutput">action</code> class. The action class, in
			
 
				-          turn, contains a list of source targets, properties, and a name of
			
 
				-          bjam action block which should be executed.
			
 
				-        </p>
			
 
				-<p>We try hard to never create equal instances of the
			
 
				-          <code class="computeroutput">virtual-target</code> class. Each code which creates virtual
			
 
				-          targets passes them though the <code class="computeroutput">virtual-target.register</code>
			
 
				-          function, which detects if a target with the same name, sources, and
			
 
				-          properties was created. In that case, existing target is returned.
			
 
				-        </p>
			
 
				-<p>When all virtual targets are produced, they are
			
 
				-          "actualized". This means that the real file names are computed, and
			
 
				-          the commands that should be run are generated. This is done by the
			
 
				-          <code class="computeroutput">virtual-target.actualize</code> method and the
			
 
				-          <code class="computeroutput">action.actualize</code> methods. The first is conceptually
			
 
				-          simple, while the second need additional explanation. The commands
			
 
				-          in bjam are generated in two-stage process. First, a rule with the
			
 
				-          appropriate name (for example
			
 
				-          "gcc.compile") is called and is given the names of targets. The rule
			
 
				-          sets some variables, like "OPTIONS". After that, the command string
			
 
				-          is taken, and variable are substitutes, so use of OPTIONS inside the
			
 
				-          command string become the real compile options.
			
 
				-        </p>
			
 
				-<p>Boost.Build added a third stage to simplify things. It's now
			
 
				-          possible to automatically convert properties to appropriate assignments to
			
 
				-          variables. For example, &lt;debug-symbols&gt;on would add "-g" to the
			
 
				-          OPTIONS variable, without requiring to manually add this logic to
			
 
				-          gcc.compile. This functionality is part of the "toolset" module.
			
 
				-        </p>
			
 
				-<p>Note that the <code class="filename">build/virtual-targets.jam</code> file
			
 
				-            contains an UML diagram which might help.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"></div>
			
 
				-<p>Above, we noted that metatargets are built with a set of
			
 
				-          properties. That set is represented with the
			
 
				-          <code class="computeroutput">property-set</code> class. An important point is that handling
			
 
				-          of property sets can get very expensive. For that reason, we make
			
 
				-          sure that for each set of (name, value) pairs only one
			
 
				-          <code class="computeroutput">property-set</code> instance is created. The
			
 
				-          <code class="computeroutput">property-set</code> uses extensive caching for all operation,
			
 
				-          so most work is avoided. The <code class="computeroutput">property-set.create</code> is the 
			
 
				-          factory function which should be used to create instances of the
			
 
				-          <code class="computeroutput">property-set</code> class.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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				-</body>
			
 
				-</html>
			
--- a/doc/html/bbv2/arch/targets.html
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				-<html>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
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				-<link rel="start" href="../../index.html" title="The Boost C++ Libraries">
			
 
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				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../../boost.png"></td>
			
 
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				-<a name="bbv2.arch.targets"></a>Targets</h2></div></div></div>
			
 
				-<div class="toc"><dl><dt><span class="section"><a href="targets.html#bbv2.arch.depends">Dependency scanning</a></span></dt></dl></div>
			
 
				-<p>NOTE: THIS SECTION IS NOT EXPECTED TO BE READ!
			
 
				-        There are two user-visible kinds of targets in Boost.Build.
			
 
				-  First are "abstract" &#8212; they correspond to things declared
			
 
				-  by user, for example, projects and executable files. The primary
			
 
				-  thing about abstract target is that it's possible to request them
			
 
				-  to be build with a particular values of some properties. Each
			
 
				-  combination of properties may possible yield different set of
			
 
				-  real file, so abstract target do not have a direct correspondence
			
 
				-  with files.</p>
			
 
				-<p>File targets, on the contary, are associated with concrete
			
 
				-  files. Dependency graphs for abstract targets with specific
			
 
				-  properties are constructed from file targets. User has no was to
			
 
				-  create file targets, however it can specify rules that detect
			
 
				-  file type for sources, and also rules for transforming between
			
 
				-  file targets of different types. That information is used in
			
 
				-  constructing dependency graph, as desribed in the "next section".
			
 
				-  [ link? ] <span class="bold"><strong>Note:</strong></span>File targets are not
			
 
				-  the same as targets in Jam sense; the latter are created from
			
 
				-  file targets at the latest possible moment. <span class="bold"><strong>Note:</strong></span>"File
			
 
				-  target" is a proposed name for what we call virtual targets. It
			
 
				-  it more understandable by users, but has one problem: virtual
			
 
				-  targets can potentially be "phony", and not correspond to any
			
 
				-  file.</p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.arch.depends"></a>Dependency scanning</h3></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="targets.html#id1709744">Support for different scanning algorithms</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#id1709753">Ability to scan the same file several times</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#id1709788">Proper detection of dependencies on generated files.</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#id1709921">Proper detection of dependencies from generated files</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>Dependency scanning is the process of finding implicit
			
 
				-  dependencies, like "#include" statements in C++. The requirements
			
 
				-  for right dependency scanning mechanism are:</p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-        Support for different scanning algorithms. C++ and XML have
			
 
				-    quite different syntax for includes and rules for looking up
			
 
				-    included files.
			
 
				-      </li>
			
 
				-<li>
			
 
				-        Ability to scan the same file several times. For example,
			
 
				-    single C++ file can be compiled with different include
			
 
				-    paths.
			
 
				-      </li>
			
 
				-<li>
			
 
				-        Proper detection of dependencies on generated files.
			
 
				-      </li>
			
 
				-<li>
			
 
				-        Proper detection of dependencies from generated file.
			
 
				-      </li>
			
 
				-</ul></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="id1709744"></a>Support for different scanning algorithms</h4></div></div></div>
			
 
				-<p>Different scanning algorithm are encapsulated by objects
			
 
				-  called "scanners". Please see the documentation for "scanner"
			
 
				-  module for more details.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="id1709753"></a>Ability to scan the same file several times</h4></div></div></div>
			
 
				-<p>As said above, it's possible to compile a C++ file twice, with
			
 
				-  different include paths. Therefore, include dependencies for
			
 
				-  those compilations can be different. The problem is that bjam
			
 
				-  does not allow several scans of the same target.</p>
			
 
				-<p>The solution in Boost.Build is straigtforward. When a virtual
			
 
				-  target is converted to bjam target (via
			
 
				-  <code class="literal">virtual-target.actualize</code> method), we specify the scanner
			
 
				-  object to be used. The actualize method will create different
			
 
				-  bjam targets for different scanners.</p>
			
 
				-<p>All targets with specific scanner are made dependent on target
			
 
				-  without scanner, which target is always created. This is done in
			
 
				-  case the target is updated. The updating action will be
			
 
				-  associated with target without scanner, but if sources for that
			
 
				-  action are touched, all targets &#8212; with scanner and without
			
 
				-  should be considered outdated.</p>
			
 
				-<p>For example, assume that "a.cpp" is compiled by two compilers
			
 
				-  with different include path. It's also copied into some install
			
 
				-  location. In turn, it's produced from "a.verbatim". The
			
 
				-  dependency graph will look like:</p>
			
 
				-<pre class="programlisting">
			
 
				-a.o (&lt;toolset&gt;gcc)  &lt;--(compile)-- a.cpp (scanner1) ----+
			
 
				-a.o (&lt;toolset&gt;msvc) &lt;--(compile)-- a.cpp (scanner2) ----|
			
 
				-a.cpp (installed copy)    &lt;--(copy) ----------------------- a.cpp (no scanner)
			
 
				-                                                                 ^
			
 
				-                                                                 |
			
 
				-                       a.verbose --------------------------------+
			
 
				-</pre>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="id1709788"></a>Proper detection of dependencies on generated files.</h4></div></div></div>
			
 
				-<p>This requirement breaks down to the following ones.</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-        If when compiling "a.cpp" there's include of "a.h", the
			
 
				-    "dir" directory is in include path, and a target called "a.h"
			
 
				-    will be generated to "dir", then bjam should discover the
			
 
				-    include, and create "a.h" before compiling "a.cpp".
			
 
				-      </li>
			
 
				-<li>
			
 
				-      Since almost always Boost.Build generates targets to a
			
 
				-    "bin" directory, it should be supported as well. I.e. in the
			
 
				-    scanario above, Jamfile in "dir" might create a main target,
			
 
				-    which generates "a.h". The file will be generated to "dir/bin"
			
 
				-    directory, but we still have to recornize the dependency.
			
 
				-      </li>
			
 
				-</ol></div>
			
 
				-<p>The first requirement means that when determining what "a.h"
			
 
				-  means, when found in "a.cpp", we have to iterate over all
			
 
				-  directories in include paths, checking for each one:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-        If there's file "a.h" in that directory, or
			
 
				-      </li>
			
 
				-<li>
			
 
				-        If there's a target called "a.h", which will be generated
			
 
				-    to that directory.
			
 
				-      </li>
			
 
				-</ol></div>
			
 
				-<p>Classic Jam has built-in facilities for point (1) above, but
			
 
				-  that's not enough. It's hard to implement the right semantic
			
 
				-  without builtin support. For example, we could try to check if
			
 
				-  there's targer called "a.h" somewhere in dependency graph, and
			
 
				-  add a dependency to it. The problem is that without search in
			
 
				-  include path, the semantic may be incorrect. For example, one can
			
 
				-  have an action which generated some "dummy" header, for system
			
 
				-  which don't have the native one. Naturally, we don't want to
			
 
				-  depend on that generated header on platforms where native one is
			
 
				-  included.</p>
			
 
				-<p>There are two design choices for builtin support. Suppose we
			
 
				-  have files a.cpp and b.cpp, and each one includes header.h,
			
 
				-  generated by some action. Dependency graph created by classic jam
			
 
				-  would look like:</p>
			
 
				-<pre class="programlisting">
			
 
				-a.cpp -----&gt; &lt;scanner1&gt;header.h  [search path: d1, d2, d3]
			
 
				-
			
 
				-
			
 
				-                  &lt;d2&gt;header.h  --------&gt; header.y
			
 
				-                  [generated in d2]
			
 
				-           
			
 
				-b.cpp -----&gt; &lt;scanner2&gt;header.h [ search path: d1, d2, d4]
			
 
				-</pre>
			
 
				-<p>
			
 
				-In this case, Jam thinks all header.h target are not
			
 
				-realated. The right dependency graph might be:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-a.cpp ---- 
			
 
				-          \
			
 
				-           \     
			
 
				-            &gt;----&gt;  &lt;d2&gt;header.h  --------&gt; header.y
			
 
				-           /       [generated in d2]
			
 
				-          / 
			
 
				-b.cpp ----
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-or
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-a.cpp -----&gt; &lt;scanner1&gt;header.h  [search path: d1, d2, d3]
			
 
				-                          |
			
 
				-                       (includes)
			
 
				-                          V
			
 
				-                  &lt;d2&gt;header.h  --------&gt; header.y
			
 
				-                  [generated in d2]
			
 
				-                          ^
			
 
				-                      (includes)  
			
 
				-                          |
			
 
				-b.cpp -----&gt; &lt;scanner2&gt;header.h [ search path: d1, d2, d4]
			
 
				-</pre>
			
 
				-<p>
			
 
				-The first alternative was used for some time. The problem
			
 
				-however is: what include paths should be used when scanning
			
 
				-header.h? The second alternative was suggested by Matt Armstrong.
			
 
				-It has similiar effect: add targets which depend on
			
 
				-&lt;scanner1&gt;header.h will also depend on &lt;d2&gt;header.h.
			
 
				-But now we have two different target with two different scanners,
			
 
				-and those targets can be scanned independently. The problem of
			
 
				-first alternative is avoided, so the second alternative is
			
 
				-implemented now.
			
 
				-        </p>
			
 
				-<p>The second sub-requirements is that targets generated to "bin"
			
 
				-  directory are handled as well. Boost.Build implements
			
 
				-  semi-automatic approach. When compiling C++ files the process
			
 
				-  is:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-        The main target to which compiled file belongs is found.
			
 
				-      </li>
			
 
				-<li>
			
 
				-        All other main targets that the found one depends on are
			
 
				-    found. Those include main target which are used as sources, or
			
 
				-    present as values of "dependency" features.
			
 
				-      </li>
			
 
				-<li>
			
 
				-        All directories where files belonging to those main target
			
 
				-    will be generated are added to the include path.
			
 
				-      </li>
			
 
				-</ol></div>
			
 
				-<p>After this is done, dependencies are found by the approach
			
 
				-  explained previously.</p>
			
 
				-<p>Note that if a target uses generated headers from other main
			
 
				-  target, that main target should be explicitly specified as
			
 
				-  dependency property. It would be better to lift this requirement,
			
 
				-  but it seems not very problematic in practice.</p>
			
 
				-<p>For target types other than C++, adding of include paths must
			
 
				-  be implemented anew.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="id1709921"></a>Proper detection of dependencies from generated files</h4></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="targets.html#id1710022">File targets</a></span></dt>
			
 
				-<dt><span class="section"><a href="targets.html#id1710055">Target paths</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>Suppose file "a.cpp" includes "a.h" and both are generated by
			
 
				-  some action. Note that classic jam has two stages. In first stage
			
 
				-  dependency graph graph is build and actions which should be run
			
 
				-  are determined. In second stage the actions are executed.
			
 
				-  Initially, neither file exists, so the include is not found. As
			
 
				-  the result, jam might attempt to compile a.cpp before creating
			
 
				-  a.h, and compilation will fail.</p>
			
 
				-<p>The solution in Boost.Jam is to perform additional dependency
			
 
				-  scans after targets are updated. This break separation between
			
 
				-  build stages in jam &#8212; which some people consider a good
			
 
				-  thing &#8212; but I'm not aware of any better solution.</p>
			
 
				-<p>In order to understand the rest of this section, you better
			
 
				-  read some details about jam dependency scanning, available
			
 
				-  <a href="http://public.perforce.com:8080/@md=d&amp;cd=//public/jam/src/&amp;ra=s&amp;c=kVu@//2614?ac=10" target="_top">
			
 
				-  at this link</a>.</p>
			
 
				-<p>Whenever a target is updated, Boost.Jam rescans it for
			
 
				-  includes. Consider this graph, created before any actions are
			
 
				-  run.</p>
			
 
				-<pre class="programlisting">
			
 
				-A -------&gt; C ----&gt; C.pro
			
 
				-     /
			
 
				-B --/         C-includes   ---&gt; D
			
 
				-</pre>
			
 
				-<p>
			
 
				-Both A and B have dependency on C and C-includes (the latter
			
 
				-dependency is not shown). Say during building we've tried to create
			
 
				-A, then tried to create C and successfully created C.
			
 
				-        </p>
			
 
				-<p>In that case, the set of includes in C might well have
			
 
				-  changed. We do not bother to detect precisely which includes were
			
 
				-  added or removed. Instead we create another internal node
			
 
				-  C-includes-2. Then we determine what actions should be run to
			
 
				-  update the target. In fact this mean that we perform logic of
			
 
				-  first stage while already executing stage.</p>
			
 
				-<p>After actions for C-includes-2 are determined, we add
			
 
				-  C-includes-2 to the list of A's dependents, and stage 2 proceeds
			
 
				-  as usual. Unfortunately, we can't do the same with target B,
			
 
				-  since when it's not visited, C target does not know B depends on
			
 
				-  it. So, we add a flag to C which tells and it was rescanned. When
			
 
				-  visiting B target, the flag is notices and C-includes-2 will be
			
 
				-  added to the list of B's dependencies.</p>
			
 
				-<p>Note also that internal nodes are sometimes updated too.
			
 
				-  Consider this dependency graph:</p>
			
 
				-<pre class="programlisting">
			
 
				-a.o ---&gt; a.cpp
			
 
				-            a.cpp-includes --&gt;  a.h (scanned)
			
 
				-                                   a.h-includes ------&gt; a.h (generated)
			
 
				-                                                                 |
			
 
				-                                                                 |
			
 
				-            a.pro &lt;-------------------------------------------+
			
 
				-</pre>
			
 
				-<p>Here, out handling of generated headers come into play. Say
			
 
				-  that a.h exists but is out of date with respect to "a.pro", then
			
 
				-  "a.h (generated)" and "a.h-includes" will be marking for
			
 
				-  updating, but "a.h (scanned)" won't be marked. We have to rescan
			
 
				-  "a.h" file after it's created, but since "a.h (generated)" has no
			
 
				-  scanner associated with it, it's only possible to rescan "a.h"
			
 
				-  after "a.h-includes" target was updated.</p>
			
 
				-<p>Tbe above consideration lead to decision that we'll rescan a
			
 
				-  target whenever it's updated, no matter if this target is
			
 
				-  internal or not.</p>
			
 
				-<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Warning</h3>
			
 
				-<p>
			
 
				-    The remainder of this document is not indended to be read at
			
 
				-    all. This will be rearranged in future.
			
 
				-    </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h5 class="title">
			
 
				-<a name="id1710022"></a>File targets</h5></div></div></div>
			
 
				-<p>
			
 
				-  As described above, file targets corresponds
			
 
				-  to files that Boost.Build manages. User's may be concerned about
			
 
				-  file targets in three ways: when declaring file target types,
			
 
				-  when declaring transformations between types, and when
			
 
				-  determining where file target will be placed. File targets can
			
 
				-  also be connected with actions, that determine how the target is
			
 
				-  created. Both file targets and actions are implemented in the
			
 
				-  <code class="literal">virtual-target</code> module.
			
 
				-          </p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h6 class="title">
			
 
				-<a name="id1710041"></a>Types</h6></div></div></div>
			
 
				-<p>A file target can be given a file, which determines
			
 
				-  what transformations can be applied to the file. The
			
 
				-  <code class="literal">type.register</code> rule declares new types. File type can
			
 
				-  also be assigned a scanner, which is used to find implicit
			
 
				-  dependencies. See "dependency scanning" [ link? ] below.</p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h5 class="title">
			
 
				-<a name="id1710055"></a>Target paths</h5></div></div></div>
			
 
				-<p>To distinguish targets build with different properties, they
			
 
				-  are put in different directories. Rules for determining target
			
 
				-  paths are given below:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-        All targets are placed under directory corresponding to the
			
 
				-    project where they are defined.
			
 
				-      </li>
			
 
				-<li>
			
 
				-        Each non free, non incidental property cause an additional
			
 
				-    element to be added to the target path. That element has the
			
 
				-    form <code class="literal">&lt;feature-name&gt;-&lt;feature-value&gt;</code> for
			
 
				-    ordinary features and <code class="literal">&lt;feature-value&gt;</code> for
			
 
				-    implicit ones. [Note about composite features].
			
 
				-      </li>
			
 
				-<li>
			
 
				-        If the set of free, non incidental properties is different
			
 
				-    from the set of free, non incidental properties for the project
			
 
				-    in which the main target that uses the target is defined, a
			
 
				-    part of the form <code class="literal">main_target-&lt;name&gt;</code> is added to
			
 
				-    the target path. <span class="bold"><strong>Note:</strong></span>It would be nice to completely
			
 
				-    track free features also, but this appears to be complex and
			
 
				-    not extremely needed.
			
 
				-      </li>
			
 
				-</ol></div>
			
 
				-<p>For example, we might have these paths:</p>
			
 
				-<pre class="programlisting">
			
 
				-debug/optimization-off
			
 
				-debug/main-target-a
			
 
				-</pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
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				-<dt><span class="section"><a href="extender.html#bbv2.extender.intro">Introduction</a></span></dt>
			
 
				-<dt><span class="section"><a href="extending/targets.html">Target types</a></span></dt>
			
 
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				-<dt><span class="section"><a href="extending/tools.html">Tools and generators</a></span></dt>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.extender.intro"></a>Introduction</h2></div></div></div>
			
 
				-<p>This document explains how to extend Boost.Build to accomodate
			
 
				-  your local requirements. Let's start with a simple but
			
 
				-  realistic example.</p>
			
 
				-<p>Say you're writing an application that generates C++ code. If
			
 
				-  you ever did this, you know that it's not nice. Embedding large
			
 
				-  portions of C++ code in string literals is very awkward. A much
			
 
				-  better solution is:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-        Write the template of the code to be generated, leaving
			
 
				-    placeholders at the points that will change
			
 
				-      </li>
			
 
				-<li>
			
 
				-        Access the template in your application and replace
			
 
				-    placeholders with appropriate text.
			
 
				-      </li>
			
 
				-<li>Write the result.</li>
			
 
				-</ol></div>
			
 
				-<p>It's quite easy to achieve. You write special verbatim files
			
 
				-  that are just C++, except that the very first line of the file
			
 
				-  contains the name of a variable that should be generated. A simple tool
			
 
				-  is created that takes a verbatim file and creates a cpp file with
			
 
				-  a single <code class="computeroutput">char*</code> variable whose name is taken from the first line
			
 
				-  of the verbatim file and whose value is the file's properly quoted content.</p>
			
 
				-<p>Let's see what Boost.Build can do.</p>
			
 
				-<p>First off, Boost.Build has no idea about "verbatim files". So,
			
 
				-  you must register a new target type. The following code does
			
 
				-  it:</p>
			
 
				-<pre class="programlisting">
			
 
				-import type ;
			
 
				-type.register VERBATIM : vrb ;
			
 
				-</pre>
			
 
				-<p>The first parameter to
			
 
				-  <code class="computeroutput">type.register</code> gives the name of the
			
 
				-  declared type. By convention, it's uppercase. The second parameter
			
 
				-  is the suffix for files of this type. So, if Boost.Build sees
			
 
				-  <code class="filename">code.vrb</code> in a list of sources, it knows that it's of type
			
 
				-  <code class="computeroutput">VERBATIM</code>.</p>
			
 
				-<p>Next, you tell Boost.Build that the verbatim files can be
			
 
				-  transformed into C++ files in one build step.  A
			
 
				-  <em class="firstterm">generator</em> is a template for a build step that
			
 
				-  transforms targets of one type (or set of types) into another.  Our
			
 
				-  generator will be called <code class="computeroutput">verbatim.inline-file</code>; it
			
 
				-  transforms <code class="computeroutput">VERBATIM</code> files into <code class="computeroutput">CPP</code> files:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-import generators ;
			
 
				-generators.register-standard verbatim.inline-file : VERBATIM : CPP ;
			
 
				-</pre>
			
 
				-<p>Lastly, you have to inform Boost.Build about the shell
			
 
				-  commands used to make that transformation.  That's done with an
			
 
				-  <code class="computeroutput">actions</code> declaration.
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-actions inline-file
			
 
				-{
			
 
				-    "./inline-file.py" $(&lt;) $(&gt;)
			
 
				-}
			
 
				-</pre>
			
 
				-<p>Now, we're ready to tie it all together. Put all the code
			
 
				-  above in file <code class="filename">verbatim.jam</code>, add <code class="computeroutput">import verbatim ;</code> 
			
 
				-  to <code class="filename">project-root.jam</code>, and it's possible to write
			
 
				-  the following in Jamfile:</p>
			
 
				-<pre class="programlisting">
			
 
				-exe codegen : codegen.cpp class_template.verbatim usage.verbatim ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-The verbatim files will be automatically converted into C++
			
 
				-and linked it.
			
 
				-  </p>
			
 
				-<p>In the subsequent sections, we will extend this example, and review
			
 
				-        all the mechanisms in detail. The complete code is available in <a href="../../../tools/build/v2/example/customization" target="_top">example/customization</a>
			
 
				-        directory.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-<a name="bbv2.extending.features"></a>Features</h2></div></div></div>
			
 
				-<p>
			
 
				-        Often, we need to control the options passed the invoked tools. This 
			
 
				-        is done with features. Consider an example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-# Declare a new free feature
			
 
				-import feature : feature ;
			
 
				-feature verbatim-options : : free ;
			
 
				-
			
 
				-# Cause the value of the 'verbatim-options' feature to be
			
 
				-# available as 'OPTIONS' variable inside verbatim.inline-file
			
 
				-import toolset : flags ;
			
 
				-flags verbatim.inline-file OPTIONS &lt;verbatim-options&gt; ;
			
 
				-
			
 
				-# Use the "OPTIONS" variable
			
 
				-actions inline-file
			
 
				-{
			
 
				-    "./inline-file.py" $(OPTIONS) $(&lt;) $(&gt;)
			
 
				-}
			
 
				-</pre>
			
 
				-<p>
			
 
				-        We first define a new feature. Then, the <code class="computeroutput">flags</code> invocation
			
 
				-        says that whenever verbatin.inline-file action is run, the value of
			
 
				-        the <code class="computeroutput">verbatim-options</code> feature will be added to the
			
 
				-        <code class="computeroutput">OPTIONS</code> variable, an can be used inside the action body.
			
 
				-        You'd need to consult online help (--help) to find all the features of
			
 
				-        the <code class="computeroutput">toolset.flags</code> rule.
			
 
				-        </p>
			
 
				-<p>
			
 
				-      Although you can define any set of features and interpret their values
			
 
				-      in any way, Boost.Build suggests the following coding standard for
			
 
				-      designing features.
			
 
				-    </p>
			
 
				-<p>Most features should have a fixed set of values that is portable
			
 
				-      (tool neutral) across the class of tools they are designed to work
			
 
				-      with. The user does not have to adjust the values for a exact tool.  For
			
 
				-      example, <code class="computeroutput">&lt;optimization&gt;speed</code> has the same meaning for
			
 
				-      all C++ compilers and the user does not have to worry about the exact
			
 
				-      options passed to the compiler's command line.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Besides such portable features there are special 'raw' features that
			
 
				-      allow the user to pass any value to the command line parameters for a
			
 
				-      particular tool, if so desired. For example, the
			
 
				-      <code class="computeroutput">&lt;cxxflags&gt;</code> feature allows you to pass any command line
			
 
				-      options to a C++ compiler. The <code class="computeroutput">&lt;include&gt;</code> feature
			
 
				-      allows you to pass any string preceded by <code class="computeroutput">-I</code> and the interpretation
			
 
				-      is tool-specific.  (See <a href="../faq/external.html" title="Can I get output of external program as a variable in a Jamfile?
			
 
				-    ">the section called &#8220;Can I get output of external program as a variable in a Jamfile?
			
 
				-    &#8221;</a> for an example of very smart usage of that
			
 
				-      feature).  Of course one should always strive to use portable
			
 
				-      features, but these are still be provided as a backdoor just to make
			
 
				-      sure Boost.Build does not take away any control from the user. 
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Using portable features is a good idea because:
			
 
				-      </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>When a portable feature is given a fixed set of
			
 
				-          values, you can build your project with two different
			
 
				-          settings of the feature and Boost.Build will automatically
			
 
				-          use two different directories for generated files.
			
 
				-          Boost.Build does not try to separate targets built with
			
 
				-          different raw options.
			
 
				-            </p></li>
			
 
				-<li><p>Unlike with &#8220;raw&#8221; features, you don't need to use
			
 
				-          specific command-line flags in your Jamfile, and it will be
			
 
				-          more likely to work with other tools.
			
 
				-          </p></li>
			
 
				-</ul></div>
			
 
				-<h3>
			
 
				-<a name="id1706749"></a>Steps for adding a feauture</h3>
			
 
				-<p>Adding a feature requires three steps:
			
 
				-
			
 
				-        </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p>Declaring a feature. For that, the "feature.feature"
			
 
				-              rule is used. You have to decide on the set of <a href="../reference/definitions.html#bbv2.reference.features.attributes" title="Feature Attributes">feature
			
 
				-              attributes</a>:
			
 
				-
			
 
				-              </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>if a feature has several values and
			
 
				-                    significally affects the build, make it &#8220;propagated,&#8221; so that the 
			
 
				-                    whole project is built with the same value by
			
 
				-                    default</p></li>
			
 
				-<li><p>if a feature does not have a fixed
			
 
				-                list of values, it must be &#8220;free.&#8221;  For example, the
			
 
				-                <code class="computeroutput">include</code> feature is a free
			
 
				-                feature.</p></li>
			
 
				-<li><p>if a feature is used to refer to a
			
 
				-                path relative to the Jamfile, it must be a &#8220;path&#8221;
			
 
				-                feature.  <code class="computeroutput">include</code> is also a path
			
 
				-                feature.</p></li>
			
 
				-<li><p>if feature is used to refer to some target, it
			
 
				-                must be a &#8220;dependency&#8221; feature. </p></li>
			
 
				-</ul></div>
			
 
				-</li>
			
 
				-<li><p>Representing the feature value in a
			
 
				-          target-specific variable. Build actions are command
			
 
				-          templates modified by Boost.Jam variable expansions.  The
			
 
				-          <code class="computeroutput">toolset.flags</code> rule sets a target-specific
			
 
				-          variable to the value of a feature.</p></li>
			
 
				-<li><p>Using the variable. The variable set in step 2 can
			
 
				-              be used in a build action to form command parameters or
			
 
				-              files.</p></li>
			
 
				-</ol></div>
			
 
				-<h3>
			
 
				-<a name="id1706828"></a>Another example</h3>
			
 
				-<p>Here's another example.
			
 
				-        Let's see how we can make a feature that refers to a target. For example,
			
 
				-        when linking dynamic libraries on windows, one sometimes needs to specify
			
 
				-        "DEF file", telling what functions should be exported. It would be nice to
			
 
				-        use this file like this:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-        lib a : a.cpp : &lt;def-file&gt;a.def ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Actually, this feature is already supported, but anyway...
			
 
				-        </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p>Since the feature refers to a target, it must be "dependency".
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-feature def-file : : free dependency ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p>One of the toolsets that cares about
			
 
				-        
			
 
				-        DEF files is msvc. The following line should be added to it.
			
 
				-        </p>
			
 
				-<pre class="programlisting">
			
 
				-flags msvc.link DEF_FILE &lt;def-file&gt; ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p>Since the DEF_FILE variable is not used by the
			
 
				-msvc.link action, 
			
 
				-
			
 
				-we need to modify it to be:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-actions link bind DEF_FILE
			
 
				-{
			
 
				-    $(.LD) .... /DEF:$(DEF_FILE) ....
			
 
				-}
			
 
				-</pre>
			
 
				-<p> Note the <code class="computeroutput">bind DEF_FILE</code> part. It tells
			
 
				-          bjam to translate the internal target name in
			
 
				-          <code class="varname">DEF_FILE</code> to a corresponding filename in
			
 
				-          the <code class="computeroutput">link</code> action.  Without it the expansion of
			
 
				-          <code class="computeroutput">$(DEF_FILE)</code> would be a strange symbol that is
			
 
				-          not likely to make sense for the linker.
			
 
				-          </p>
			
 
				-<p>
			
 
				-            We've almost done, but should stop for a small workaround. Add the following
			
 
				-            code to msvc.jam
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-rule link
			
 
				-{
			
 
				-    DEPENDS $(&lt;) : [ on $(&lt;) return $(DEF_FILE) ] ;
			
 
				-}
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-            This is needed to accomodate some bug in bjam, which hopefully
			
 
				-            will be fixed one day.
			
 
				-            </p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-<h3>
			
 
				-<a name="id1706925"></a>Variants and composite features.</h3>
			
 
				-<p>Sometimes you want to create a shorcut for some set of
			
 
				-        features. For example, <code class="computeroutput">release</code> is a value of 
			
 
				-        <code class="computeroutput">&lt;variant&gt;</code> and is a shortcut for a set of features.
			
 
				-      </p>
			
 
				-<p>It is possible to define your own build variants. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-variant crazy : &lt;optimization&gt;speed &lt;inlining&gt;off
			
 
				-                &lt;debug-symbols&gt;on &lt;profiling&gt;on ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        will define a new variant with the specified set of properties. You
			
 
				-        can also extend an existing variant:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-variant super_release : release : &lt;define&gt;USE_ASM ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        In this case, <code class="computeroutput">super_release</code> will expand to all properties
			
 
				-        specified by <code class="computeroutput">release</code>, and the additional one you've specified.
			
 
				-      </p>
			
 
				-<p>You are not restricted to using the <code class="computeroutput">variant</code> feature
			
 
				-      only. 
			
 
				-      
			
 
				-      Here's example that defines a brand new feature:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-feature parallelism : mpi fake none : composite link-incompatible ;
			
 
				-feature.compose &lt;parallelism&gt;mpi : &lt;library&gt;/mpi//mpi/&lt;parallelism&gt;none ;
			
 
				-feature.compose &lt;parallelism&gt;fake : &lt;library&gt;/mpi//fake/&lt;parallelism&gt;none ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        This will allow you to specify value of feature
			
 
				-        <code class="computeroutput">parallelism</code>, which will expand to link to the necessary
			
 
				-        library. 
			
 
				-      </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.extending.rules"></a>Main target rules</h2></div></div></div>
			
 
				-<p>
			
 
				-      A main target rule (e.g &#8220;<code class="computeroutput">exe</code>&#8221;
			
 
				-      Or &#8220;<code class="computeroutput">lib</code>&#8221;) creates a top-level target. It's quite likely that you'll want to declare your own and
			
 
				-      there are two ways to do that.
			
 
				-      </p>
			
 
				-<p><a name="bbv2.extending.rules.main-type"></a>The first way applies when
			
 
				-
			
 
				-      your target rule should just produce a target of specific type. In that case, a
			
 
				-      rule is already defined for you! When you define a new type, Boost.Build
			
 
				-      automatically defines a corresponding rule. The name of the rule is
			
 
				-      obtained from the name of the type, by downcasing all letters and
			
 
				-      replacing underscores with dashes. 
			
 
				-      
			
 
				-      For example, if you create a module
			
 
				-      <code class="filename">obfuscate.jam</code> containing:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-import type ;
			
 
				-type.register OBFUSCATED_CPP  : ocpp ;
			
 
				-
			
 
				-import generators ;
			
 
				-generators.register-standard obfuscate.file : CPP : OBFUSCATED_CPP ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      and import that module, you'll be able to use the rule "obfuscated-cpp"
			
 
				-      in Jamfiles, which will convert source to the OBFUSCATED_CPP type.
			
 
				-    </p>
			
 
				-<p>The second way is to write a wrapper rule that calls
			
 
				-      any of the existing rules. For example, suppose you have only one library per
			
 
				-      directory and want all cpp files in the directory to be compiled into that library. You
			
 
				-      can achieve this effect with:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib codegen : [ glob *.cpp ] ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      but if you want to make it even simpler, you could add the following
			
 
				-      definition to the <code class="filename">project-root.jam</code> file:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-rule glib ( name : extra-sources * : requirements * )
			
 
				-{
			
 
				-    lib $(name) : [ glob *.cpp ] $(extra-sources) : $(requirements) ;
			
 
				-}
			
 
				-</pre>
			
 
				-<p>
			
 
				-which would allow you to reduce the Jamfile to
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-glib codegen ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      Note that because you can associate a custom generator with a target
			
 
				-      type, the logic of building can be rather compiler. 
			
 
				-      
			
 
				-      For example, the
			
 
				-      <code class="computeroutput">boostbook</code> module declares a target type
			
 
				-      <code class="computeroutput">BOOSTBOOK_MAIN</code> and a custom generator for that
			
 
				-      type. You can use that as example if your main target rule is
			
 
				-      non-trivial.
			
 
				-    </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
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				-</html>
			
--- a/doc/html/bbv2/extending/targets.html
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				-<html>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Target types</title>
			
 
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				-<td align="center"><a href="../../../../people/people.htm">People</a></td>
			
 
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				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.extending.targets"></a>Target types</h2></div></div></div>
			
 
				-<div class="toc"><dl><dt><span class="section"><a href="targets.html#bbv2.extending.scanners">Scanners</a></span></dt></dl></div>
			
 
				-<p>The first thing we did in the <a href="../extender.html#bbv2.extender.intro" title="Introduction">intruduction</a> was declaring a
			
 
				-      new target type:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-import type ;
			
 
				-type.register VERBATIM : verbatim ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        The type is the most important property of a target. Boost.Build can
			
 
				-        automatically generate necessary build actions only because you
			
 
				-        specify the desired type (using the different main target rules), and
			
 
				-        because Boost.Build can guess the type of sources from their
			
 
				-        extensions.        
			
 
				-      </p>
			
 
				-<p>The first two parameters for the <code class="computeroutput">type.register</code> rule
			
 
				-        are the name of new type and the list of extensions associated with
			
 
				-        it. A file with an extension from the list will have the given target
			
 
				-        type. In the case where a target of the declared type is generated
			
 
				-        from other sources, the first specified extension will be used. 
			
 
				-      </p>
			
 
				-<p>Sometimes you want to change the suffix used for generated targets
			
 
				-      depending on build properties, such as toolset. For example, some compiler
			
 
				-      uses extension <code class="literal">elf</code> for executable files. You can use the
			
 
				-      <code class="computeroutput">type.set-generated-target-suffix</code> rule:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-type.set-generated-target-suffix EXE : &lt;toolset&gt;elf : elf ;
			
 
				-</pre>
			
 
				-<p>A new target type can be inherited from an existing one. 
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-type.register PLUGIN : : SHARED_LIB ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      The above code defines a new type derived from
			
 
				-      <code class="computeroutput">SHARED_LIB</code>. Initially, the new type inherits all the
			
 
				-      properties of the base type - in particular generators and suffix.
			
 
				-      Typically, you'll change the new type in some way. For example, using
			
 
				-      <code class="computeroutput">type.set-generated-target-suffix</code> you can set the suffix for
			
 
				-      the new type. Or you can write special generator for the new type. For
			
 
				-      example, it can generate additional metainformation for plugin.
			
 
				-      In either way, the <code class="computeroutput">PLUGIN</code> type can be used whenever
			
 
				-      <code class="computeroutput">SHARED_LIB</code> can. For example, you can directly link plugins
			
 
				-      to an application.
			
 
				-    </p>
			
 
				-<p>A type can be defined as "main", in which case Boost.Build will
			
 
				-      automatically declare a main target rule for building targets of that
			
 
				-      type. More details can be found <a href="rules.html#bbv2.extending.rules.main-type">later</a>.
			
 
				-    </p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.extending.scanners"></a>Scanners</h3></div></div></div>
			
 
				-<p>
			
 
				-          Sometimes, a file can refer to other files via some include
			
 
				-          mechanism. To make Boost.Build track dependencies to the included
			
 
				-          files, you need to provide a scanner. The primary limitation is that
			
 
				-          only one scanner can be assigned to a target type.
			
 
				-        </p>
			
 
				-<p>First, we need to declare a new class for the scanner:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-class verbatim-scanner : common-scanner
			
 
				-{
			
 
				-    rule pattern ( )
			
 
				-    {
			
 
				-        return "//###include[ ]*\"([^\"]*)\"" ;
			
 
				-    }
			
 
				-}
			
 
				-</pre>
			
 
				-<p>         
			
 
				-          All the complex logic is in the <code class="computeroutput">common-scanner</code>
			
 
				-          class, and you only need to override the method that returns
			
 
				-          the regular expression to be used for scanning. The
			
 
				-          paranthethis in the regular expression indicate which part
			
 
				-          of the string is the name of the included file.  Only the
			
 
				-          first parenthesized group in the regular expression will be
			
 
				-          recognized; if you can't express everything you want that
			
 
				-          way, you can return multiple regular expressions, each of
			
 
				-          which contains a parenthesized group to be matched.
			
 
				-        </p>
			
 
				-<p>After that, we need to register our scanner class:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-scanner.register verbatim-scanner : include ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-            The value of the second parameter, in this case
			
 
				-            <code class="computeroutput">include</code>, specifies the properties that contain the list
			
 
				-            of paths that should be searched for the included files.
			
 
				-         </p>
			
 
				-<p>Finally, we assign the new scaner to the <code class="computeroutput">VERBATIM</code>
			
 
				-        target type:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-type.set-scanner VERBATIM : verbatim-scanner ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-          That's enough for scanning include dependencies.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-</body>
			
 
				-</html>
			
--- a/doc/html/bbv2/extending/tools.html
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				-<html>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.extending.tools"></a>Tools and generators</h2></div></div></div>
			
 
				-<p>
			
 
				-        This section will describe how Boost.Build can be extended to support
			
 
				-        new tools.
			
 
				-      </p>
			
 
				-<p>For each additional tool, a Boost.Build object called generator
			
 
				-        must be created. That object has specific types of targets that it
			
 
				-        accepts an produces. Using that information, Boost.Build is able
			
 
				-        to automatically invoke the generator. For example, if you declare a
			
 
				-        generator that takes a target of the type <code class="literal">D</code> and
			
 
				-        produces a target of the type <code class="literal">OBJ</code>, when placing a
			
 
				-        file with extention <code class="literal">.d</code> in a list of sources will
			
 
				-        cause Boost.Build to invoke your generator, and then to link the
			
 
				-        resulting object file into an application. (Of course, this requires
			
 
				-        that you specify that the <code class="literal">.d</code> extension corresponds
			
 
				-        to the <code class="literal">D</code> type.)
			
 
				-      </p>
			
 
				-<p>Each generator should be an instance of a class derived from the
			
 
				-        <code class="computeroutput">generator</code> class. In the simplest case, you don't need to
			
 
				-        create a derived class, but simply create an instance of the
			
 
				-        <code class="computeroutput">generator</code> class. Let's review the example we've seen in the
			
 
				-        <a href="../extender.html#bbv2.extender.intro" title="Introduction">introduction</a>.
			
 
				-        </p>
			
 
				-<pre class="programlisting">
			
 
				-import generators ;
			
 
				-generators.register-standard verbatim.inline-file : VERBATIM : CPP ;
			
 
				-actions inline-file
			
 
				-{
			
 
				-    "./inline-file.py" $(&lt;) $(&gt;)
			
 
				-}
			
 
				-</pre>
			
 
				-<p>We declare a standard generator, specifying its id, the source type
			
 
				-        and the target type. When invoked, the generator will create a target
			
 
				-        of type <code class="literal">CPP</code> with a source target of
			
 
				-        type <code class="literal">VERBATIM</code> as the only source. But what command
			
 
				-        will be used to actually generate the file? In bjam, actions are
			
 
				-        specified using named "actions" blocks and the name of the action
			
 
				-        block should be specified when creating targets. By convention,
			
 
				-        generators use the same name of the action block as their own id. So,
			
 
				-        in above example, the "inline-file" actions block will be use to
			
 
				-        convert the source into the target.
			
 
				-      </p>
			
 
				-<p>
			
 
				-        There are two primary kinds of generators: standard and composing,
			
 
				-        which are registered with the
			
 
				-        <code class="computeroutput">generators.register-standard</code> and the
			
 
				-        <code class="computeroutput">generators.register-composing</code> rules, respectively. For
			
 
				-        example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-generators.register-standard verbatim.inline-file : VERBATIM : CPP ;
			
 
				-generators.register-composing mex.mex : CPP LIB : MEX ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        Standard generators take a <span class="emphasis"><em>single</em></span> source of type
			
 
				-        <code class="computeroutput">VERBATIM</code> and produces a result. The second generator
			
 
				-        takes any number of sources, which can have either the
			
 
				-        <code class="computeroutput">CPP</code> or the <code class="computeroutput">LIB</code> type. Composing generators
			
 
				-        are typically used for generating top-level target type. For example,
			
 
				-        the first generator invoked when building an <code class="computeroutput">exe</code> target
			
 
				-        is a composing generator corresponding to the proper linker.
			
 
				-      </p>
			
 
				-<p>You should also know about two specific function for registering
			
 
				-        generators: <code class="computeroutput">generators.register-c-compiler</code> and
			
 
				-        <code class="computeroutput">generators.register-linker</code>. The first sets up header
			
 
				-        dependecy scanning for C files, and the seconds handles various
			
 
				-        complexities like searched libraries. For that reason, you should always
			
 
				-        use those functions when adding support for compilers and linkers.
			
 
				-      </p>
			
 
				-<p>(Need a note about UNIX)</p>
			
 
				-<h3>
			
 
				-<a name="id1706493"></a>Custom generator classes</h3>
			
 
				-<p>The standard generators allows you to specify source and target
			
 
				-        types, action, and a set of flags. If you need anything more complex,
			
 
				-        
			
 
				-        you need to create a new generator class with your own logic. Then,
			
 
				-        you have to create an instance of that class and register it. Here's
			
 
				-        an example how you can create your own generator class:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-class custom-generator : generator
			
 
				-{
			
 
				-    rule __init__ ( * : * )
			
 
				-    {
			
 
				-        generator.__init__ $(1) : $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ;
			
 
				-    }
			
 
				-
			
 
				-}
			
 
				-
			
 
				-generators.register 
			
 
				-  [ new custom-generator verbatim.inline-file : VERBATIM : CPP ] ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        This generator will work exactly like the
			
 
				-        <code class="computeroutput">verbatim.inline-file</code> generator we've defined above, but
			
 
				-        it's possible to customize the behaviour by overriding methods of the
			
 
				-        <code class="computeroutput">generator</code> class.
			
 
				-      </p>
			
 
				-<p>There are two methods of interest. The <code class="computeroutput">run</code> method is
			
 
				-        responsible for the overall process - it takes a number of source targets,
			
 
				-        converts them the the right types, and creates the result. The
			
 
				-        <code class="computeroutput">generated-targets</code> method is called when all sources are
			
 
				-        converted to the right types to actually create the result.
			
 
				-      </p>
			
 
				-<p>The <code class="computeroutput">generated-target</code>
			
 
				-      method can be overridden
			
 
				-      when you want to add additional properties to the generated
			
 
				-      targets or use additional sources. For a real-life example,
			
 
				-      suppose you have a program analysis tool that should be given a
			
 
				-      name of executable and the list of all sources. Naturally, you
			
 
				-      don't want to list all source files manually. Here's how the
			
 
				-      <code class="computeroutput">generated-target</code> method can find the list of
			
 
				-      sources automatically:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-class itrace-generator : generator {
			
 
				-....
			
 
				-    rule generated-targets ( sources + : property-set : project name ? )
			
 
				-    {
			
 
				-        local leaves ;
			
 
				-        local temp = [ virtual-target.traverse $(sources[1]) : : include-sources ] ;
			
 
				-        for local t in $(temp)
			
 
				-        {
			
 
				-            if ! [ $(t).action ]
			
 
				-            {
			
 
				-                leaves += $(t) ;
			
 
				-            }
			
 
				-        }
			
 
				-        return [ generator.generated-targets $(sources) $(leafs)
			
 
				-          : $(property-set) : $(project) $(name) ] ;
			
 
				-    }
			
 
				-}
			
 
				-generators.register [ new itrace-generator nm.itrace : EXE : ITRACE ] ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        The <code class="computeroutput">generated-targets</code> method will be called with a single
			
 
				-        source target of type <code class="literal">EXE</code>. The call to 
			
 
				-        <code class="computeroutput">virtual-target.traverse</code> will return all targets the
			
 
				-        executable depends on, and we further find files that are not
			
 
				-        produced from anything. 
			
 
				-        The found targets are added to the sources.
			
 
				-      </p>
			
 
				-<p>The <code class="computeroutput">run</code> method can be overriden to completely
			
 
				-        customize the way generator works. In particular, the conversion of
			
 
				-        sources to the desired types can be completely customized. Here's
			
 
				-        another real example. Tests for the Boost Python library usually
			
 
				-        consist of two parts: a Python program and a C++ file. The C++ file is
			
 
				-        compiled to Python extension that is loaded by the Python
			
 
				-        program. But in the likely case that both files have the same name,
			
 
				-        the created Python extension must be renamed. Otherwise, Python
			
 
				-        program will import itself, not the extension. Here's how it can be
			
 
				-        done:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-rule run ( project name ? : property-set : sources * : multiple ? )
			
 
				-{       
			
 
				-    local python ;
			
 
				-    for local s in $(sources)
			
 
				-    {
			
 
				-        if [ $(s).type ] = PY
			
 
				-        {
			
 
				-            python = $(s) ;
			
 
				-        }
			
 
				-    }
			
 
				-    
			
 
				-    local libs ;
			
 
				-    for local s in $(sources)
			
 
				-    {
			
 
				-        if [ type.is-derived [ $(s).type ] LIB ]
			
 
				-        {
			
 
				-            libs += $(s) ;
			
 
				-        }
			
 
				-    }
			
 
				-    
			
 
				-    local new-sources ;
			
 
				-    for local s in $(sources)
			
 
				-    {
			
 
				-        if [ type.is-derived [ $(s).type ] CPP ] 
			
 
				-        {
			
 
				-            local name = [ $(s).name ] ;    # get the target's basename
			
 
				-            if $(name) = [ $(python).name ] 
			
 
				-            {
			
 
				-                name = $(name)_ext ;        # rename the target
			
 
				-            }                                
			
 
				-            new-sources += [ generators.construct $(project) $(name) :
			
 
				-              PYTHON_EXTENSION : $(property-set) : $(s) $(libs) ] ;
			
 
				-        }
			
 
				-    }
			
 
				-        
			
 
				-    result = [ construct-result $(python) $(new-sources) : $(project) $(name) 
			
 
				-                 : $(property-set) ] ;        
			
 
				-}    
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-        First, we separate all source into python files, libraries and C++
			
 
				-        sources. For each C++ source we create a separate Python extension by
			
 
				-        calling <code class="computeroutput">generators.construct</code> and passing the C++ source
			
 
				-        and the libraries. At this point, we also change the extension's name,
			
 
				-        if necessary.        
			
 
				-      </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="targets.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../extender.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="features.html"><img src="../../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/bbv2/extending/toolset_modules.html
+++ b/doc/html/bbv2/extending/toolset_modules.html
@@ -1,124 +0,0 @@
 
				-<html>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
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				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.extending.toolset_modules"></a>Toolset modules</h2></div></div></div>
			
 
				-<p>If your extensions will be used only on one project, they can be
			
 
				-      placed in a separate <code class="filename">.jam</code> file that will be
			
 
				-      imported by your <code class="filename">project-root.jam</code>. If the
			
 
				-      extensions will be used on many projects, users will thank you for 
			
 
				-      a finishing touch.
			
 
				-    </p>
			
 
				-<p>The <code class="computeroutput">using</code> rule provides a standard mechanism
			
 
				-    for loading and configuring extensions.  To make it work, your module
			
 
				-    
			
 
				-    should provide an <code class="computeroutput">init</code> rule. The rule will be called
			
 
				-    with the same parameters that were passed to the
			
 
				-    <code class="computeroutput">using</code> rule. The set of allowed parameters is
			
 
				-    determined by you. For example, you can allow the user to specify
			
 
				-    paths, tool versions, and other options.
			
 
				-    </p>
			
 
				-<p>Here are some guidelines that help to make Boost.Build more
			
 
				-      consistent:
			
 
				-      </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li><p>The <code class="computeroutput">init</code> rule should never fail. Even if
			
 
				-          the user provided an incorrect path, you should emit a warning and go
			
 
				-          on. Configuration may be shared between different machines, and
			
 
				-          wrong values on one machine can be OK on another.
			
 
				-          </p></li>
			
 
				-<li>
			
 
				-<p>Prefer specifying the command to be executed
			
 
				-        to specifying the tool's installation path. First of all, this
			
 
				-        gives more control: it's possible to specify
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-/usr/bin/g++-snapshot
			
 
				-time g++
			
 
				-</pre>
			
 
				-<p>
			
 
				-            as the command. Second, while some tools have a logical
			
 
				-            "installation root", it's better if user doesn't have to remember whether
			
 
				-            a specific tool requires a full command or a path.
			
 
				-            </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p>Check for multiple initialization. A user can try to
			
 
				-            initialize the module several times. You need to check for this
			
 
				-            and decide what to do. Typically, unless you support several
			
 
				-            versions of a tool, duplicate initialization is a user error. 
			
 
				-            
			
 
				-            If the
			
 
				-            tool's version can be specified during initialization, make sure the
			
 
				-            version is either always specified, or never specified (in which
			
 
				-            case the tool is initialied only once). For example, if you allow:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using yfc ;
			
 
				-using yfc : 3.3 ;
			
 
				-using yfc : 3.4 ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-            Then it's not clear if the first initialization corresponds to
			
 
				-            version 3.3 of the tool, version 3.4 of the tool, or some other
			
 
				-            version. This can lead to building twice with the same version.
			
 
				-            </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p>If possible, <code class="computeroutput">init</code> must be callable
			
 
				-          with no parameters. In which case, it should try to autodetect all
			
 
				-          the necessary information, for example, by looking for a tool in
			
 
				-          <code class="envar">PATH</code> or in common installation locations. Often this
			
 
				-          is possible and allows the user to simply write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-using yfc ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-<li><p>Consider using facilities in the
			
 
				-          <code class="computeroutput">tools/common</code> module. You can take a look at how
			
 
				-          <code class="computeroutput">tools/gcc.jam</code> uses that module in the <code class="computeroutput">init</code> rule.
			
 
				-          </p></li>
			
 
				-</ul></div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-<dl>
			
 
				-<dt><span class="section"><a href="faq.html#id1708877">
			
 
				-        I'm getting "Duplicate name of actual target" error. What
			
 
				-        does it mean?
			
 
				-      </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/envar.html">
			
 
				-      Accessing environment variables
			
 
				-      </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/s03.html">
			
 
				-        How to control properties order?
			
 
				-      </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/s04.html">
			
 
				-      How to control the library order on Unix?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/external.html">Can I get output of external program as a variable in a Jamfile?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/s06.html">How to get the project-root location?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/s07.html">How to change compilation flags for one file?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="faq/dll-path.html">Why are the <code class="computeroutput">dll-path</code> and
			
 
				-    <code class="computeroutput">hardcode-dll-paths</code> properties useful?
			
 
				-    </a></span></dt>
			
 
				-<dt><span class="section"><a href="recipies/site-config.html">Targets in site-config.jam</a></span></dt>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="id1708877"></a>
			
 
				-        I'm getting "Duplicate name of actual target" error. What
			
 
				-        does it mean?
			
 
				-      </h2></div></div></div>
			
 
				-<p>    
			
 
				-    The most likely case is that you're trying to
			
 
				-    compile the same file twice, with almost the same,
			
 
				-    but differing properties. For example:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp : &lt;include&gt;/usr/local/include ;
			
 
				-exe b : a.cpp ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-    The above snippet requires two different compilations
			
 
				-    of 'a.cpp', which differ only in 'include' property.
			
 
				-    Since the 'include' property is free, Boost.Build
			
 
				-    can't generate two objects files into different directories.
			
 
				-    On the other hand, it's dangerous to compile the file only
			
 
				-    once -- maybe you really want to compile with different
			
 
				-    includes.
			
 
				-    </p>
			
 
				-<p>
			
 
				-    To solve this issue, you need to decide if file should
			
 
				-    be compiled once or twice.</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p>Two compile file only once, make sure that properties
			
 
				-      are the same:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp : &lt;include&gt;/usr/local/include ;
			
 
				-exe b : a.cpp : &lt;include&gt;/usr/local/include ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p>
			
 
				-      If changing the properties is not desirable, for example
			
 
				-      if 'a' and 'b' target have other sources which need
			
 
				-      specific properties, separate 'a.cpp' into it's own target:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-obj a_obj : a.cpp : &lt;include&gt;/usr/local/include ;
			
 
				-exe a : a_obj ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p>
			
 
				-      To compile file twice, you can make the object file local
			
 
				-      to the main target:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-      exe a : [ obj a_obj : a.cpp ] : &lt;include&gt;/usr/local/include ;
			
 
				-      exe b : [ obj a_obj : a.cpp ] ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-<p>
			
 
				-   A good question is why Boost.Build can't use some of the above
			
 
				-   approaches automatically. The problem is that such magic would
			
 
				-   require additional implementation complexities and would only
			
 
				-   help in half of the cases, while in other half we'd be silently
			
 
				-   doing the wrong thing. It's simpler and safe to ask user to
			
 
				-   clarify his intention in such cases.
			
 
				-   </p>
			
 
				-</div>
			
 
				-</div>
			
 
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				-<a name="bbv2.faq.dll-path"></a>Why are the <code class="computeroutput">dll-path</code> and
			
 
				-    <code class="computeroutput">hardcode-dll-paths</code> properties useful?
			
 
				-    </h2></div></div></div>
			
 
				-<p>(This entry is specific to Unix system.)Before answering the
			
 
				-      questions, let's recall a few points about shared libraries. Shared
			
 
				-      libraries can be used by several applications, or other libraries,
			
 
				-      without phisycally including the library in the application. This can
			
 
				-      greatly decrease the total size of applications. It's also possible to
			
 
				-      upgrade a shared library when the application is already
			
 
				-      installed. Finally, shared linking can be faster.
			
 
				-    </p>
			
 
				-<p>However, the shared library must be found when the application is
			
 
				-      started. The dynamic linker will search in a system-defined list of
			
 
				-      paths, load the library and resolve the symbols. Which means that you
			
 
				-      should either change the system-defined list, given by the
			
 
				-      <code class="envar">LD_LIBRARY_PATH</code> environment variable, or install the
			
 
				-      libraries to a system location. This can be inconvenient when
			
 
				-      developing, since the libraries are not yet ready to be installed, and
			
 
				-      cluttering system paths is undesirable. Luckily, on Unix there's another
			
 
				-      way.
			
 
				-    </p>
			
 
				-<p>An executable can include a list of additional library paths, which
			
 
				-      will be searched before system paths. This is excellent for development,
			
 
				-      because the build system knows the paths to all libraries and can include
			
 
				-      them in executables. That's done when the <code class="computeroutput">hardcode-dll-paths</code>
			
 
				-      feature has the <code class="literal">true</code> value, which is the
			
 
				-      default. When the executables should be installed, the story is
			
 
				-      different.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Obviously, installed executable should not hardcode paths to your
			
 
				-      development tree. (The <code class="computeroutput">stage</code> rule explicitly disables the
			
 
				-      <code class="computeroutput">hardcode-dll-paths</code> feature for that reason.) However, you
			
 
				-      can use the <code class="computeroutput">dll-path</code> feature to add explicit paths
			
 
				-      manually. For example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-stage installed : application : &lt;dll-path&gt;/usr/lib/snake
			
 
				-                                &lt;location&gt;/usr/bin ;          
			
 
				-</pre>
			
 
				-<p>
			
 
				-      will allow the application to find libraries placed to
			
 
				-      <code class="filename">/usr/lib/snake</code>.
			
 
				-    </p>
			
 
				-<p>If you install libraries to a nonstandard location and add an
			
 
				-      explicit path, you get more control over libraries which will be used. A
			
 
				-      library of the same name in a system location will not be inadvertently
			
 
				-      used.  If you install libraries to a system location and do not add any
			
 
				-      paths, the system administrator will have more control. Each library can
			
 
				-      be individually upgraded, and all applications will use the new library.
			
 
				-    </p>
			
 
				-<p>Which approach is best depends on your situation. If the libraries
			
 
				-      are relatively standalone and can be used by third party applications,
			
 
				-      they should be installed in the system location. If you have lots of
			
 
				-      libraries which can be used only by your application, it makes sense to
			
 
				-      install it to a nonstandard directory and add an explicit path, like the
			
 
				-      example above shows. Please also note that guidelines for different
			
 
				-      systems differ in this respect. The Debian guidelines prohibit any
			
 
				-      additional search paths, and Solaris guidelines suggest that they should
			
 
				-      always be used.
			
 
				-    </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-      </h2></div></div></div>
			
 
				-<p>    
			
 
				-      Many users would like to use environment variables in Jamfiles, for
			
 
				-      example, to control location of external libraries. In many cases you
			
 
				-      better declare those external libraries in the site-config.jam file, as
			
 
				-      documented in the <a href="../recipies/site-config.html" title="Targets in site-config.jam">recipes
			
 
				-      section</a>. However, if the users already have the environment variables set
			
 
				-      up, it's not convenient to ask them to set up site-config.jam files as
			
 
				-      well, and using environment variables might be reasonable.
			
 
				-    </p>
			
 
				-<p>In Boost.Build V2, each Jamfile is a separate namespace, and the
			
 
				-    variables defined in environment is imported into the global
			
 
				-    namespace. Therefore, to access environment variable from Jamfile, you'd
			
 
				-    need the following code:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-import modules ;
			
 
				-local SOME_LIBRARY_PATH = [ modules.peek : SOME_LIBRARY_PATH ] ;
			
 
				-exe a : a.cpp : &lt;include&gt;$(SOME_LIBRARY_PATH) ;
			
 
				-</pre>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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				-<a name="bbv2.faq.external"></a>Can I get output of external program as a variable in a Jamfile?
			
 
				-    </h2></div></div></div>
			
 
				-<p>From time to time users ask how to run an external program and save
			
 
				-    the result in Jamfile variable, something like:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-local gtk_includes = [ RUN_COMMAND gtk-config ] ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      Unfortunately, this is not possible at the moment. However, if the
			
 
				-      result of command invocation is to be used in a command to some tool,
			
 
				-      and you're working on Unix, the following workaround is possible.
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				- alias gtk+-2.0 : : : :
			
 
				-         &lt;cflags&gt;"`pkg-config --cflags gtk+-2.0`"
			
 
				-         &lt;inkflags&gt;"`pkg-config --libs gtk+-2.0`"
			
 
				-     ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      If you use the "gtk+-2.0" target in sources, then the properties
			
 
				-      specified above will be added to the build properties and eventually
			
 
				-      will appear in the command line. Unix command line shell processes
			
 
				-      the backticks quoting by running the tool and using its output --
			
 
				-      which is what's desired in that case. Thanks to Daniel James for
			
 
				-      sharing this approach.
			
 
				-    </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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				-        How to control properties order?
			
 
				-      </h2></div></div></div>
			
 
				-<p>For internal reasons, Boost.Build sorts all the properties
			
 
				-    alphabetically. This means that if you write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp : &lt;include&gt;b &lt;include&gt;a ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      then the command line with first mention the "a" include directory, and
			
 
				-      then "b", even though they are specified in the opposite order. In most
			
 
				-      cases, the user doesn't care. But sometimes the order of includes, or
			
 
				-      other properties, is important. For example, if one uses both the C++
			
 
				-      Boost library and the "boost-sandbox" (libraries in development), then
			
 
				-      include path for boost-sandbox must come first, because some headers may
			
 
				-      override ones in C++ Boost. For such cases, a special syntax is
			
 
				-      provided:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp : &lt;include&gt;a&amp;&amp;b ;        
			
 
				-</pre>
			
 
				-<p>The <code class="computeroutput">&amp;&amp;</code> symbols separate values of an
			
 
				-      property, and specify that the order of the values should be preserved. You
			
 
				-      are advised to use this feature only when the order of properties really
			
 
				-      matters, and not as a convenient shortcut. Using it everywhere might
			
 
				-      negatively affect performance.
			
 
				-    </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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				-      How to control the library order on Unix?
			
 
				-    </h2></div></div></div>
			
 
				-<p>On the Unix-like operating systems, the order in which static
			
 
				-      libraries are specified when invoking the linker is important, because by
			
 
				-      default, the linker uses one pass though the libraries list. Passing the
			
 
				-      libraries in the incorrect order will lead to a link error. Further, this
			
 
				-      behaviour is often used to make one library override symbols from
			
 
				-      another. So, sometimes it's necessary to force specific order of
			
 
				-      libraries.    
			
 
				-    </p>
			
 
				-<p>Boost.Build tries to automatically compute the right order.  The
			
 
				-      primary rule is that if library a "uses" library b, then library a will
			
 
				-      appear on the command line before library b. Library a is considered to
			
 
				-      use b is b is present either in the sources of a or in its
			
 
				-      requirements. To explicitly specify the use relationship one can use the
			
 
				-      &lt;use&gt; feature. For example, both of the following lines will cause
			
 
				-      a to appear before b on the command line:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib a : a.cpp b ;
			
 
				-lib a : a.cpp : &lt;use&gt;b ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      The same approach works for searched libraries, too:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib z ;
			
 
				-lib png : : &lt;use&gt;z ;
			
 
				-exe viewer : viewer png z ;
			
 
				-</pre>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-    </h2></div></div></div>
			
 
				-<p>You might want to use the location of the project-root in your
			
 
				-      Jamfiles. To do it, you'd need to declare path constant in your
			
 
				-      project-root.jam:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-path-constant TOP : . ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      After that, the <code class="computeroutput">TOP</code> variable can be used in every Jamfile.
			
 
				-    </p>
			
 
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				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="id1709127"></a>How to change compilation flags for one file?
			
 
				-    </h2></div></div></div>
			
 
				-<p>If one file must be compiled with special options, you need to
			
 
				-      explicitly declare an <code class="computeroutput">obj</code> target for that file and then use
			
 
				-      that target in your <code class="computeroutput">exe</code> or <code class="computeroutput">lib</code> target:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp b ;
			
 
				-obj b : b.cpp : &lt;optimization&gt;off ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      Of course you can use other properties, for example to specify specific
			
 
				-      compiler options:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp b ;
			
 
				-obj b : b.cpp : &lt;cflags&gt;-g ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      You can also use <a href="../tutorial/conditions.html" title="Conditions and alternatives">conditional
			
 
				-      properties</a> for finer control:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp b ;
			
 
				-obj b : b.cpp : &lt;variant&gt;release:&lt;optimization&gt;off ;
			
 
				-</pre>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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--- a/doc/html/bbv2/howto.html
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@@ -1,66 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Chapter 21. How to use this document</title>
			
 
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				-       /* I think that's just a bit too distracting for the reader... */
			
 
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				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
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				-<link rel="prev" href="../bbv2.html" title="Part III. Boost.Build v2 User Manual">
			
 
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				-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
			
 
				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../people/people.htm">People</a></td>
			
 
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				-</div>
			
 
				-<div class="chapter" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title">
			
 
				-<a name="bbv2.howto"></a>Chapter 21. How to use this document</h2></div></div></div>
			
 
				-<p>
			
 
				-      If you've just found out about Boost.Build V2 and want to know
			
 
				-      if it will work for you, start with <a href="tutorial.html" title="Chapter 23. Tutorial">Chapter 23, <i>Tutorial</i></a>. You can continue with the <a href="advanced.html" title="Chapter 24. User documentation">Chapter 24, <i>User documentation</i></a>. When you're ready to try Boost.Build
			
 
				-      in practice, go to <a href="installation.html" title="Chapter 22. Installation">Chapter 22, <i>Installation</i></a>.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      If you are about to use Boost.Build on your project, or already
			
 
				-      using it and have a problem, look at <a href="advanced.html" title="Chapter 24. User documentation">Chapter 24, <i>User documentation</i></a>.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      If you're trying to build a project which uses Boost.Build,
			
 
				-      look at <a href="installation.html" title="Chapter 22. Installation">Chapter 22, <i>Installation</i></a> and then read about
			
 
				-      <a href="reference.html#bbv2.reference.commandline" title="Command line">the section called &#8220;Command line&#8221;</a>.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      If you have questions, please post them to our <a href="http://boost.org/more/mailing_lists.htm#jamboost" target="_top">mailing
			
 
				-      list</a>, and be sure to indicate in the subject line that
			
 
				-      you're asking about Boost.Build <span class="bold"><strong>V2</strong></span>.
			
 
				-    </p>
			
 
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				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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--- a/doc/html/bbv2/installation.html
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				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Chapter 22. Installation</title>
			
 
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				-       /* I think that's just a bit too distracting for the reader... */
			
 
				-       /* background-attachment: fixed; */
			
 
				-       /* background-position: center center; */
			
 
				-     }</style>
			
 
				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../bbv2.html" title="Part III. Boost.Build v2 User Manual">
			
 
				-<link rel="prev" href="howto.html" title="Chapter 21. How to use this document">
			
 
				-<link rel="next" href="tutorial.html" title="Chapter 23. Tutorial">
			
 
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				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../people/people.htm">People</a></td>
			
 
				-<td align="center"><a href="../../../more/faq.htm">FAQ</a></td>
			
 
				-<td align="center"><a href="../../../more/index.htm">More</a></td>
			
 
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				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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				-</div>
			
 
				-<div class="chapter" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title">
			
 
				-<a name="bbv2.installation"></a>Chapter 22. Installation</h2></div></div></div>
			
 
				-<p>
			
 
				-      This section describes how to install Boost.Build from a
			
 
				-      released <a href="http://sourceforge.net/project/showfiles.php?group_id=7586&amp;package_id=8041" target="_top">Boost
			
 
				-      source distribution</a>
			
 
				-      or <a href="http://sourceforge.net/cvs/?group_id=7586" target="_top">CVS
			
 
				-      image</a>.
			
 
				-      <sup>[<a name="id1701106" href="#ftn.id1701106">2</a>]</sup>
			
 
				-All paths are given relative to
			
 
				-      the <em class="firstterm">Boost.Build v2 root directory</em>, which is 
			
 
				-
			
 
				-      
			
 
				-
			
 
				-      located in the <code class="filename">tools/build/v2</code> subdirectory
			
 
				-      of a full Boost <a href="http://sourceforge.net/project/showfiles.php?group_id=7586&amp;package_id=8041" target="_top">distribution</a>.
			
 
				-      <sup>[<a name="id1701143" href="#ftn.id1701143">3</a>]</sup></p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-          Boost.Build uses <a href="../../../tools/build/jam_src/index.html" target="_top">Boost.Jam</a>, an
			
 
				-          extension of the <a href="http://www.perforce.com/jam/jam.html" target="_top">Perforce
			
 
				-          Jam</a> portable <span><strong class="command">make</strong></span> replacement. The
			
 
				-          recommended way to get Boost.Jam is to <span class="bold"><strong><a href="http://sourceforge.net/project/showfiles.php?group_id=7586&amp;package_id=72941" target="_top">download
			
 
				-          a prebuilt executable</a></strong></span> from SourceForge.
			
 
				-          If a prebuilt executable is not provided for your platform
			
 
				-          or you are using Boost's sources in an unreleased state, it
			
 
				-          may be necessary to <a href="../../../tools/build/jam_src/index.html#building_bjam" target="_top">build <span><strong class="command">bjam</strong></span>
			
 
				-          from sources</a> included in the Boost source tree.
			
 
				-        </li>
			
 
				-<li>
			
 
				-<p>
			
 
				-
			
 
				-          To install Boost.Jam, copy the executable,
			
 
				-          called <span><strong class="command">bjam</strong></span>
			
 
				-          or <span><strong class="command">bjam.exe</strong></span> to a location accessible in
			
 
				-          your <code class="envar">PATH</code>.  Go to the Boost.Build root
			
 
				-          directory and
			
 
				-          run <span><strong class="command">bjam <code class="option">--version</code></strong></span>. You
			
 
				-          should see:
			
 
				-
			
 
				-          </p>
			
 
				-<pre class="screen">
			
 
				-            Boost.Build V2 (Milestone N)
			
 
				-            Boost.Jam xx.xx.xx 
			
 
				-          </pre>
			
 
				-<p>
			
 
				-
			
 
				-          where N is the version of Boost.Build you're using.
			
 
				-        </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-          Configure Boost.Build to recognize the build resources (such
			
 
				-          as compilers and libraries) you have installed on your
			
 
				-          system.  Open the
			
 
				-          <code class="filename">user-config.jam</code> file in the Boost.Build
			
 
				-          root directory and follow the instructions there to describe
			
 
				-          your toolsets and libraries, and, if necessary, where they
			
 
				-          are located.
			
 
				-        </li>
			
 
				-<li>
			
 
				-          You should now be able to go to the
			
 
				-          <code class="filename">example/hello/</code> directory and run
			
 
				-          <span><strong class="command">bjam</strong></span> there. A simple application will be
			
 
				-          built. You can also play with other projects in the
			
 
				-          <code class="filename">example/</code> directory. 
			
 
				-    </li>
			
 
				-</ol></div>
			
 
				-<p>
			
 
				-      If you are using Boost's CVS state, be sure to
			
 
				-      rebuild <span><strong class="command">bjam</strong></span> even if you have a previous
			
 
				-      version.  The CVS version of Boost.Build requires the CVS
			
 
				-      version of Boost.Jam.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      When <span><strong class="command">bjam</strong></span> is invoked, it always needs to be
			
 
				-      able to find the Boost.Build root directory, where the
			
 
				-      interpreted source code of Boost.Build is located.  There are
			
 
				-      two ways to tell <span><strong class="command">bjam</strong></span> about the root directory:
			
 
				-    </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-          Set the environment variable <code class="envar">BOOST_BUILD_PATH</code>
			
 
				-          to the absolute path of the Boost.Build root directory.
			
 
				-        </li>
			
 
				-<li>
			
 
				-<p>
			
 
				-          At the root directory of your project or in any of its
			
 
				-          parent directories, create a file called
			
 
				-          <code class="filename">boost-build.jam</code>, with a single line:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-boost-build <em class="replaceable"><code>/path/to/boost.build</code></em> ;
			
 
				-</pre>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-<p><span class="bold"><strong>N.B.</strong></span>
			
 
				-  When <span><strong class="command">bjam</strong></span> is invoked from anywhere in the Boost
			
 
				-  directory tree <span class="emphasis"><em>other than</em></span> the Boost.Build root
			
 
				-  and its subdirectories, <a href="../../../tools/build" target="_top">Boost.Build
			
 
				-  v1</a> is used by default. To override the default and use
			
 
				-  Boost.Build v2, you have to add the <code class="option">--v2</code> command
			
 
				-  line option to all <span><strong class="command">bjam</strong></span> invocations.</p>
			
 
				-<div class="footnotes">
			
 
				-<br><hr width="100" align="left">
			
 
				-<div class="footnote"><p><sup>[<a name="ftn.id1701106" href="#id1701106">2</a>] </sup>Note that packages prepared for
			
 
				-      Unix/Linux systems usually make their own choices about where to
			
 
				-      put things and even which parts of Boost to include.  When we
			
 
				-      say &#8220;released source distribution&#8221; we mean a
			
 
				-      distribution of Boost as released on its SourceForge
			
 
				-      <a href="http://sourceforge.net/project/showfiles.php?group_id=7586&amp;package_id=8041" target="_top">project
			
 
				-      page</a>.
			
 
				-        </p></div>
			
 
				-<div class="footnote"><p><sup>[<a name="ftn.id1701143" href="#id1701143">3</a>] </sup>The Boost.Build subset of boost is also distributed
			
 
				-        separately, for those who are only interested in getting a
			
 
				-        build tool. The top-level directory of a <a href="http://sourceforge.net/project/showfiles.php?group_id=7586&amp;package_id=80982" target="_top">Boost.Build
			
 
				-        distribution</a> contains all the subdirectories of the
			
 
				-        <code class="filename">tools/build/v2</code> subdirectory from a full
			
 
				-        Boost distribution, so it is itself a valid Boost.Build root
			
 
				-        directory.  It also contains the
			
 
				-        <code class="filename">tools/build/jam_src</code> subdirectory of a
			
 
				-        full Boost distribution, so you can rebuild Boost.Jam from
			
 
				-        source.
			
 
				-        </p></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="howto.html"><img src="../images/prev.png" alt="Prev"></a><a accesskey="u" href="../bbv2.html"><img src="../images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../images/home.png" alt="Home"></a><a accesskey="n" href="tutorial.html"><img src="../images/next.png" alt="Next"></a>
			
 
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				-</body>
			
 
				-</html>
			
--- a/doc/html/bbv2/recipies/site-config.html
+++ b/doc/html/bbv2/recipies/site-config.html
@@ -1,69 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Targets in site-config.jam</title>
			
 
				-<link rel="stylesheet" href="../../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<style type="text/css">
			
 
				-body { background-image: url('http://docbook.sourceforge.net/release/images/draft.png');
			
 
				-       background-repeat: no-repeat;
			
 
				-       background-position: top left;
			
 
				-       /* The following properties make the watermark "fixed" on the page. */
			
 
				-       /* I think that's just a bit too distracting for the reader... */
			
 
				-       /* background-attachment: fixed; */
			
 
				-       /* background-position: center center; */
			
 
				-     }</style>
			
 
				-<link rel="start" href="../../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../faq.html" title="Chapter 27. Frequently Asked Questions">
			
 
				-<link rel="prev" href="../faq/dll-path.html" title="Why are the dll-path and
			
 
				-    hardcode-dll-paths properties useful?
			
 
				-    ">
			
 
				-<link rel="next" href="../arch.html" title="Appendix B. Boost.Build v2 architecture">
			
 
				-</head>
			
 
				-<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
			
 
				-<table cellpadding="2" width="100%">
			
 
				-<td valign="top"><img alt="boost.png (6897 bytes)" width="277" height="86" src="../../../../boost.png"></td>
			
 
				-<td align="center"><a href="../../../../index.htm">Home</a></td>
			
 
				-<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
			
 
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				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.recipies.site-config"></a>Targets in site-config.jam</h2></div></div></div>
			
 
				-<p>It is desirable to declare standard libraries available on a
			
 
				-      given system. Putting target declaration in Jamfile is not really
			
 
				-      good, since locations of the libraries can vary. The solution is
			
 
				-      to put the following to site-config.jam.</p>
			
 
				-<pre class="programlisting">
			
 
				-import project ;
			
 
				-project.initialize $(__name__) ;
			
 
				-project site-config ;
			
 
				-lib zlib : : &lt;name&gt;z ;
			
 
				-</pre>
			
 
				-<p>The second line allows this module to act as project. The
			
 
				-      third line gives id to this project &#8212; it really has no location
			
 
				-      and cannot be used otherwise. The fourth line just declares a
			
 
				-      target. Now, one can write:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp /site-config//zlib ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-      in any Jamfile.</p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="../faq/dll-path.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../faq.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="../arch.html"><img src="../../images/next.png" alt="Next"></a>
			
 
				-</div>
			
 
				-</body>
			
 
				-</html>
			
--- a/doc/html/bbv2/reference.html
+++ b/doc/html/bbv2/reference.html
@@ -1,337 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Chapter 26. Detailed reference</title>
			
 
				-<link rel="stylesheet" href="../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<style type="text/css">
			
 
				-body { background-image: url('http://docbook.sourceforge.net/release/images/draft.png');
			
 
				-       background-repeat: no-repeat;
			
 
				-       background-position: top left;
			
 
				-       /* The following properties make the watermark "fixed" on the page. */
			
 
				-       /* I think that's just a bit too distracting for the reader... */
			
 
				-       /* background-attachment: fixed; */
			
 
				-       /* background-position: center center; */
			
 
				-     }</style>
			
 
				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../bbv2.html" title="Part III. Boost.Build v2 User Manual">
			
 
				-<link rel="prev" href="extending/toolset_modules.html" title="Toolset modules">
			
 
				-<link rel="next" href="reference/jamfiles.html" title="Writing Jamfiles">
			
 
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				-<table cellpadding="2" width="100%">
			
 
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				-<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
			
 
				-<td align="center"><a href="../../../people/people.htm">People</a></td>
			
 
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				-<div class="chapter" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title">
			
 
				-<a name="bbv2.reference"></a>Chapter 26. Detailed reference</h2></div></div></div>
			
 
				-<div class="toc">
			
 
				-<p><b>Table of Contents</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.general">General information</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.init">Initialization</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.commandline">Command line</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="reference/jamfiles.html">Writing Jamfiles</a></span></dt>
			
 
				-<dd><dl><dt><span class="section"><a href="reference/jamfiles.html#bbv2.reference.headers">Generated headers</a></span></dt></dl></dd>
			
 
				-<dt><span class="section"><a href="reference/buildprocess.html">Build process</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="reference/buildprocess.html#bbv2.reference.buildprocess.alternatives">Alternative selection</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/buildprocess.html#bbv2.reference.buildprocess.common">Determining common properties</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="reference/definitions.html">Definitions</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="reference/definitions.html#bbv2.reference.features">Features and properties</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/definitions.html#bbv2.reference.variants">Build Variants</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/definitions.html#bbv2.reference.variants.proprefine">Property refinement</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/definitions.html#bbv2.reference.variants.propcond">Conditional properties</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/definitions.html#bbv2.reference.ids">Target identifiers and references</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="reference/generators.html">Generators</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="reference/generators.html#id1708734">Selecting and ranking viable generators</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/generators.html#id1708774">Running generators</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/generators.html#id1708800">Selecting dependency graph</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/generators.html#id1708811">Property adjustment</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference/generators.html#id1708854">Transformations cache</a></span></dt>
			
 
				-</dl></dd>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.reference.general"></a>General information</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.init">Initialization</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.commandline">Command line</a></span></dt>
			
 
				-</dl></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.init"></a>Initialization</h3></div></div></div>
			
 
				-<p>bjam's first job upon startup is to load the Jam code that
			
 
				-        implements the build system. To do this, it searches for a file
			
 
				-        called <code class="filename">boost-build.jam</code>, first in the invocation directory, then
			
 
				-        in its parent and so forth up to the filesystem root, and finally
			
 
				-        in the directories specified by the environment variable
			
 
				-        BOOST_BUILD_PATH. When found, the file is interpreted, and should
			
 
				-        specify the build system location by calling the boost-build
			
 
				-        rule:</p>
			
 
				-<pre class="programlisting">
			
 
				-rule boost-build ( location ? )
			
 
				-</pre>
			
 
				-<p>
			
 
				-        If location is a relative path, it is treated as relative to
			
 
				-        the directory of <code class="filename">boost-build.jam</code>. The directory specified by
			
 
				-        that location and the directories in BOOST_BUILD_PATH are then searched for
			
 
				-        a file called <code class="filename">bootstrap.jam</code>, which is expected to
			
 
				-        bootstrap the build system. This arrangement allows the build
			
 
				-        system to work without any command-line or environment variable
			
 
				-        settings. For example, if the build system files were located in a
			
 
				-        directory "build-system/" at your project root, you might place a
			
 
				-        <code class="filename">boost-build.jam</code> at the project root containing:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-boost-build build-system ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-        In this case, running bjam anywhere in the project tree will
			
 
				-        automatically find the build system.</p>
			
 
				-<p>The default <code class="filename">bootstrap.jam</code>, after loading some standard
			
 
				-        definitions, loads two files, which can be provided/customised by
			
 
				-        user: <code class="filename">site-config.jam</code> and <code class="filename">user-config.jam</code>.</p>
			
 
				-<p>Locations where those files a search are summarized below:</p>
			
 
				-<div class="table">
			
 
				-<a name="bbv2.reference.init.config"></a><p class="title"><b>Table 26.1. Search paths for configuration files</b></p>
			
 
				-<table class="table" summary="Search paths for configuration files">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th> </th>
			
 
				-<th>site-config.jam</th>
			
 
				-<th>user-config.jam</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td>Linux</td>
			
 
				-<td>
			
 
				-<p><code class="computeroutput">/etc</code></p>
			
 
				-<p><code class="computeroutput">$HOME</code></p>
			
 
				-<p><code class="computeroutput">$BOOST_BUILD_PATH</code></p>
			
 
				-</td>
			
 
				-<td>
			
 
				-<p><code class="computeroutput">$HOME</code></p>
			
 
				-<p><code class="computeroutput">$BOOST_BUILD_PATH</code></p>
			
 
				-</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>Windows</td>
			
 
				-<td>
			
 
				-<p><code class="computeroutput">%SystemRoot%</code></p>
			
 
				-<p><code class="computeroutput">%HOMEDRIVE%%HOMEPATH%</code></p>
			
 
				-<p><code class="computeroutput">%HOME%</code></p>
			
 
				-<p><code class="computeroutput">%BOOST_BUILD_PATH%</code></p>
			
 
				-</td>
			
 
				-<td>
			
 
				-<p><code class="computeroutput">%HOMEDRIVE%%HOMEPATH%</code></p>
			
 
				-<p><code class="computeroutput">%HOME%</code></p>
			
 
				-<p><code class="computeroutput">%BOOST_BUILD_PATH%</code></p>
			
 
				-</td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table>
			
 
				-</div>
			
 
				-<p>
			
 
				-        Boost.Build comes with default versions of those files,
			
 
				-        
			
 
				-        which can serve as templates for customized versions.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.commandline"></a>Command line</h3></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.init.args">Command line arguments</a></span></dt>
			
 
				-<dt><span class="section"><a href="reference.html#bbv2.reference.init.options">Command line options</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>The command line may contain:</p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>Jam options,</li>
			
 
				-<li>Boost.Build <a href="reference.html#bbv2.reference.init.options" title="Command line options">options</a>,</li>
			
 
				-<li>Command line arguments</li>
			
 
				-</ul></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="bbv2.reference.init.args"></a>Command line arguments</h4></div></div></div>
			
 
				-<p>
			
 
				-          Command line arguments specify targets and build
			
 
				-          request using the following rules.
			
 
				-        </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-              An argument that does not contain slashes or the <code class="computeroutput">=</code>
			
 
				-              symbol is either a value of an implicit feature or of a target to
			
 
				-              be built. It is taken to be value of a feature if an appropriate
			
 
				-              feature exists. Otherwise, it is considered a <a href="reference/definitions.html#bbv2.reference.ids" title="Target identifiers and references">target id</a>. Building the
			
 
				-              special target name &#8220;clean&#8221; has the same effect as
			
 
				-              using the <code class="computeroutput">--clean</code> option.
			
 
				-            </li>
			
 
				-<li>
			
 
				-<p>
			
 
				-              An argument containing either slashes or
			
 
				-              the <code class="computeroutput">=</code> symbol specifies a number of build
			
 
				-              request elements (see ???). In its simplest
			
 
				-              form, it's just a set of properties, separated by
			
 
				-              slashes, which become a single build request element,
			
 
				-              for example:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-borland/&lt;runtime-link&gt;static
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-              A more complex form can be used to save typing. For example,
			
 
				-              instead of
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-borland/runtime-link=static borland/runtime-link=dynamic
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-              one can use
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-borland/runtime-link=static,dynamic
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-              Exactly, the conversion from argument to build request
			
 
				-              elements is performed by (1) splitting the argument at each slash,
			
 
				-              (2) converting each split part into a set of properties and (3)
			
 
				-              taking all possible combinations
			
 
				-                
			
 
				-              of the property sets. Each split
			
 
				-              part should have the either the form
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting"><span class="emphasis"><em>feature-name</em></span>=<span class="emphasis"><em>feature-value1</em></span>[","<span class="emphasis"><em>feature-valueN</em></span>]*   
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-              or, in case of implicit features
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting"><span class="emphasis"><em>feature-value1</em></span>[","<span class="emphasis"><em>feature-valueN</em></span>;]*   
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-              will be converted into the property set
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-&lt;feature-name&gt;feature-value1 .... &lt;feature-name&gt;feature-valueN
			
 
				-</pre>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-<p>
			
 
				-          For example, the command line
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-target1 debug gcc/runtime-link=dynamic,static
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-          would cause target called <code class="literal">target1</code> to be rebuilt in
			
 
				-          debug mode, except that for gcc, both dynamically and statically
			
 
				-          linked binaries would be created.
			
 
				-        </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="bbv2.reference.init.options"></a>Command line options</h4></div></div></div>
			
 
				-<p>All of the Boost.Build options start with the "--" prefix.
			
 
				-          They are described in the following table.</p>
			
 
				-<div class="table">
			
 
				-<a name="id1707672"></a><p class="title"><b>Table 26.2. Command line options</b></p>
			
 
				-<table class="table" summary="Command line options">
			
 
				-<colgroup>
			
 
				-<col>
			
 
				-<col>
			
 
				-</colgroup>
			
 
				-<thead><tr>
			
 
				-<th>Option</th>
			
 
				-<th>Description</th>
			
 
				-</tr></thead>
			
 
				-<tbody>
			
 
				-<tr>
			
 
				-<td><code class="literal">--version</code></td>
			
 
				-<td>Prints information on Boost.Build and Boost.Jam
			
 
				-                  versions.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td>
			
 
				-<a name="bbv2.reference.init.options.help"></a><code class="literal">--help</code>
			
 
				-</td>
			
 
				-<td>Access to the online help system. This prints general
			
 
				-                  information on how to use the help system with additional
			
 
				-                  --help* options.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><code class="literal">--clean</code></td>
			
 
				-<td>Removes everything instead of building. Unlike
			
 
				-                  <code class="literal">clean</code> target in make, it is possible to clean only
			
 
				-                  some targets.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><code class="literal">--debug</code></td>
			
 
				-<td>Enables internal checks.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><code class="literal">--dump-projects</code></td>
			
 
				-<td>Cause the project structure to be output.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><code class="literal">--no-error-backtrace</code></td>
			
 
				-<td>Don't print backtrace on errors. Primary useful for
			
 
				-                  testing.</td>
			
 
				-</tr>
			
 
				-<tr>
			
 
				-<td><code class="literal">--ignore-config</code></td>
			
 
				-<td>Do not load <code class="literal">site-config.jam</code> and
			
 
				-                  <code class="literal">user-config.jam</code>
			
 
				-</td>
			
 
				-</tr>
			
 
				-</tbody>
			
 
				-</table>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
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				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.reference.buildprocess"></a>Build process</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="buildprocess.html#bbv2.reference.buildprocess.alternatives">Alternative selection</a></span></dt>
			
 
				-<dt><span class="section"><a href="buildprocess.html#bbv2.reference.buildprocess.common">Determining common properties</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>The general overview of the build process was given in the 
			
 
				-      <a href="../advanced/build_process.html" title="The Build Process">user documentation</a>.
			
 
				-      This section provides additional details, and some specific rules.
			
 
				-    </p>
			
 
				-<p>To recap, building a target with specific properties includes the
			
 
				-      following steps:
			
 
				-      </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><p>applying default build,</p></li>
			
 
				-<li><p>selecting the main target alternative to use,
			
 
				-          </p></li>
			
 
				-<li><p>determining "common" properties</p></li>
			
 
				-<li><p>building targets referred by the sources list and
			
 
				-            dependency properties</p></li>
			
 
				-<li><p>adding the usage requirements produces when building
			
 
				-            dependencies to the "common" properties</p></li>
			
 
				-<li><p>building the target using generators</p></li>
			
 
				-<li><p>computing the usage requirements to be returned</p></li>
			
 
				-</ol></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.buildprocess.alternatives"></a>Alternative selection</h3></div></div></div>
			
 
				-<p>When there are several alternatives, one of them must be
			
 
				-        selected. The process is as follows:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-            For each alternative <span class="emphasis"><em>condition</em></span> is defined
			
 
				-            as the set of base properies in requirements. [Note: it might be
			
 
				-            better to specify the condition explicitly, as in
			
 
				-            conditional requirements].
			
 
				-          </li>
			
 
				-<li>
			
 
				-            An alternative is viable only if all properties in condition
			
 
				-            are present in build request.
			
 
				-          </li>
			
 
				-<li>
			
 
				-            If there's one viable alternative, it's choosen. Otherwise,
			
 
				-            an attempt is made to find one best alternative. An alternative
			
 
				-            a is better than another alternative b, iff set of properties
			
 
				-            in b's condition is strict subset of the set of properities of
			
 
				-            'a's condition. If there's one viable alternative, which is
			
 
				-            better than all other, it's selected. Otherwise, an error is
			
 
				-            reported.
			
 
				-          </li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.buildprocess.common"></a>Determining common properties</h3></div></div></div>
			
 
				-<p>The "common" properties is a somewhat artificial term. Those are
			
 
				-        the intermediate property set from which both the build request for
			
 
				-        dependencies and properties for building the target are derived.
			
 
				-      </p>
			
 
				-<p>Since default build and alternatives are already handled, we have
			
 
				-        only two inputs: build requests and requirements. Here are the rules
			
 
				-        about common properties.
			
 
				-      </p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><p>Non-free feature can have only one
			
 
				-            value</p></li>
			
 
				-<li><p>A non-conditional property in requirement in always
			
 
				-            present in common properties.</p></li>
			
 
				-<li><p>A property in build request is present in
			
 
				-            common properties, unless (2) tells otherwise.</p></li>
			
 
				-<li><p>If either build request, or requirements (non-conditional
			
 
				-            or conditional) include an expandable property (either composite,
			
 
				-            or property with specified subfeature value), the behaviour is
			
 
				-            equivalent to explicitly adding all expanded properties to build
			
 
				-            request or requirements.</p></li>
			
 
				-<li><p>If requirements include a conditional property, and
			
 
				-            condiiton of this property is true in context of common
			
 
				-            properties, then the conditional property should be in common
			
 
				-            properties as well.</p></li>
			
 
				-<li><p>If no value for a feature is given by other rules
			
 
				-            here, it has default value in common properties.</p></li>
			
 
				-</ol></div>
			
 
				-<p>Those rules are declarative, they don't specify how to compute the
			
 
				-        common properties. However, they provide enough information for the
			
 
				-        user. The important point is the handling of conditional
			
 
				-        requirements. The condition can be satisfied either by property in
			
 
				-        build request, by non-conditional requirements, or even by another
			
 
				-        conditional property. For example, the following example works as
			
 
				-        expected:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe a : a.cpp 
			
 
				-      : &lt;toolset&gt;gcc:&lt;variant&gt;release 
			
 
				-        &lt;variant&gt;release:&lt;define&gt;FOO ;
			
 
				-</pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-<a name="bbv2.reference.definitions"></a>Definitions</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.features">Features and properties</a></span></dt>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.variants">Build Variants</a></span></dt>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.variants.proprefine">Property refinement</a></span></dt>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.variants.propcond">Conditional properties</a></span></dt>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.ids">Target identifiers and references</a></span></dt>
			
 
				-</dl></div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.features"></a>Features and properties</h3></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.features.validity">Property Validity</a></span></dt>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.features.attributes">Feature Attributes</a></span></dt>
			
 
				-<dt><span class="section"><a href="definitions.html#bbv2.reference.features.declaration">Feature Declaration</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>A <span class="emphasis"><em>feature</em></span> is a normalized (toolset-independent)
			
 
				-        aspect of a build configuration, such as whether inlining is
			
 
				-        enabled. Feature names may not contain the '<code class="literal">&gt;</code>'
			
 
				-        character.</p>
			
 
				-<p>Each feature in a build configuration has one or more
			
 
				-        associated <span class="emphasis"><em>value</em></span>s. Feature values for non-free features
			
 
				-        may not contain the '<code class="literal">&lt;</code>', '<code class="literal">:</code>', or
			
 
				-        '<code class="literal">=</code>' characters. Feature values for free features may not
			
 
				-        contain the '<code class="literal">&lt;</code>' character.</p>
			
 
				-<p>A <span class="emphasis"><em>property</em></span> is a (feature,value) pair, expressed as
			
 
				-        &lt;feature&gt;value.</p>
			
 
				-<p>A <span class="emphasis"><em>subfeature</em></span> is a feature that only exists in the
			
 
				-        presence of its parent feature, and whose identity can be derived
			
 
				-        (in the context of its parent) from its value. A subfeature's
			
 
				-        parent can never be another subfeature. Thus, features and their
			
 
				-        subfeatures form a two-level hierarchy.</p>
			
 
				-<p>A <span class="emphasis"><em>value-string</em></span> for a feature <span class="bold"><strong>F</strong></span> is a string of
			
 
				-        the form
			
 
				-        <code class="literal">value-subvalue1-subvalue2</code>...<code class="literal">-subvalueN</code>, where
			
 
				-        <code class="literal">value</code> is a legal value for <span class="bold"><strong>F</strong></span> and
			
 
				-        <code class="literal">subvalue1</code>...<code class="literal">subvalueN</code> are legal values of some
			
 
				-        of <span class="bold"><strong>F</strong></span>'s subfeatures. For example, the properties
			
 
				-        <code class="literal">&lt;toolset&gt;gcc &lt;toolset-version&gt;3.0.1</code> can be
			
 
				-        expressed more conscisely using a value-string, as
			
 
				-        <code class="literal">&lt;toolset&gt;gcc-3.0.1</code>.</p>
			
 
				-<p>A <span class="emphasis"><em>property set</em></span> is a set of properties (i.e. a
			
 
				-        collection without duplicates), for instance:
			
 
				-        <code class="literal">&lt;toolset&gt;gcc &lt;runtime-link&gt;static</code>.</p>
			
 
				-<p>A <span class="emphasis"><em>property path</em></span> is a property set whose elements have
			
 
				-        been joined into a single string separated by slashes. A property
			
 
				-        path representation of the previous example would be
			
 
				-        <code class="literal">&lt;toolset&gt;gcc/&lt;runtime-link&gt;static</code>.</p>
			
 
				-<p>A <span class="emphasis"><em>build specification</em></span> is a property set that fully
			
 
				-        describes the set of features used to build a target.</p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="bbv2.reference.features.validity"></a>Property Validity</h4></div></div></div>
			
 
				-<p>
			
 
				-          For <a href="definitions.html#bbv2.reference.features.attributes.free">free</a>
			
 
				-            features, all values are valid. For all other features,
			
 
				-          the valid values are explicitly specified, and the build
			
 
				-          system will report an error for the use of an invalid
			
 
				-          feature-value. Subproperty validity may be restricted so
			
 
				-          that certain values are valid only in the presence of
			
 
				-          certain other subproperties. For example, it is possible
			
 
				-          to specify that the <code class="computeroutput">&lt;gcc-target&gt;mingw</code>
			
 
				-          property is only valid in the presence of
			
 
				-          <code class="computeroutput">&lt;gcc-version&gt;2.95.2</code>.
			
 
				-        </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="bbv2.reference.features.attributes"></a>Feature Attributes</h4></div></div></div>
			
 
				-<p>Each feature has a collection of zero or more of the following
			
 
				-          attributes. Feature attributes are low-level descriptions of how the
			
 
				-          build system should interpret a feature's values when they appear in
			
 
				-          a build request. We also refer to the attributes of properties, so
			
 
				-          that an <span class="emphasis"><em>incidental</em></span> property, for example, is
			
 
				-          one whose feature has the <span class="emphasis"><em>incidental</em></span>
			
 
				-          attribute.</p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>incidental</em></span></p>
			
 
				-<p>Incidental features are assumed not to affect build
			
 
				-              products at all. As a consequence, the build system may use
			
 
				-              the same file for targets whose build specification differs
			
 
				-              only in incidental features. A feature that controls a
			
 
				-              compiler's warning level is one example of a likely
			
 
				-              incidental feature.</p>
			
 
				-<p>Non-incidental features are assumed to affect build
			
 
				-              products, so the files for targets whose build specification
			
 
				-              differs in non-incidental features are placed in different
			
 
				-              directories as described in "target paths" below. [ where? ]
			
 
				-            </p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="bbv2.reference.features.attributes.propagated"></a><span class="emphasis"><em>propagated</em></span></p>
			
 
				-<p>Features of this kind are
			
 
				-              propagated to dependencies. That is, if a <a href="../advanced/jamfiles.html#bbv2.advanced.targets.main">main target</a> is built using a
			
 
				-              propagated
			
 
				-              property, the build systems attempts to use the same property
			
 
				-              when building any of its dependencies as part of that main
			
 
				-              target. For instance, when an optimized exectuable is
			
 
				-              requested, one usually wants it to be linked with optimized
			
 
				-              libraries. Thus, the <code class="literal">&lt;optimization&gt;</code> feature is
			
 
				-              propagated.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="bbv2.reference.features.attributes.free"></a><span class="emphasis"><em>free</em></span></p>
			
 
				-<p>Most features have a finite set of allowed values, and can
			
 
				-              only take on a single value from that set in a given build
			
 
				-              specification. Free features, on the other hand, can have
			
 
				-              several values at a time and each value can be an arbitrary
			
 
				-              string. For example, it is possible to have several
			
 
				-              preprocessor symbols defined simultaneously:</p>
			
 
				-<pre class="programlisting">
			
 
				-&lt;define&gt;NDEBUG=1 &lt;define&gt;HAS_CONFIG_H=1
			
 
				-</pre>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>optional</em></span></p>
			
 
				-<p>An optional feature is a feature that is not required to
			
 
				-              appear in a build specification. Every non-optional non-free
			
 
				-              feature has a default value that is used when a value for
			
 
				-              the feature is not otherwise specified, either in a target's
			
 
				-              requirements or in the user's build request. [A feature's
			
 
				-              default value is given by the first value listed in the
			
 
				-              feature's declaration. -- move this elsewhere - dwa]</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>symmetric</em></span></p>
			
 
				-<p>A symmetric feature's default value is not automatically
			
 
				-              included in <a href="definitions.html#bbv2.reference.variants" title="Build Variants">build variants</a>.  Normally
			
 
				-              a feature only generates a subvariant directory when its
			
 
				-              value differs from the value specified by the build variant,
			
 
				-              leading to an assymmetric subvariant directory structure for
			
 
				-              certain values of the feature. A symmetric feature, when
			
 
				-              relevant to the toolset, always generates a corresponding
			
 
				-              subvariant directory.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>path</em></span></p>
			
 
				-<p>The value of a path feature specifies a path. The path is
			
 
				-              treated as relative to the directory of Jamfile where path
			
 
				-              feature is used and is translated appropriately by the build
			
 
				-              system when the build is invoked from a different
			
 
				-              directory</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>implicit</em></span></p>
			
 
				-<p>Values of implicit features alone identify the feature.
			
 
				-              For example, a user is not required to write
			
 
				-              "&lt;toolset&gt;gcc", but can simply write "gcc". Implicit
			
 
				-              feature names also don't appear in variant paths, although
			
 
				-              the values do. Thus: bin/gcc/... as opposed to
			
 
				-              bin/toolset-gcc/.... There should typically be only a few
			
 
				-              such features, to avoid possible name clashes.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>composite</em></span></p>
			
 
				-<p>Composite features actually correspond to groups of
			
 
				-              properties. For example, a build variant is a composite
			
 
				-              feature. When generating targets from a set of build
			
 
				-              properties, composite features are recursively expanded and
			
 
				-              <span class="emphasis"><em>added</em></span> to the build property set, so rules can find
			
 
				-              them if necessary. Non-composite non-free features override
			
 
				-              components of composite features in a build property set.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><span class="emphasis"><em>dependency</em></span></p>
			
 
				-<p>The value of dependency feature if a target reference.
			
 
				-              When used for building of a main target, the value of
			
 
				-              dependency feature is treated as additional dependency.</p>
			
 
				-<p>For example, dependency features allow to state that
			
 
				-              library A depends on library B. As the result, whenever an
			
 
				-              application will link to A, it will also link to B.
			
 
				-              Specifying B as dependency of A is different from adding B to
			
 
				-              the sources of A. </p>
			
 
				-</li>
			
 
				-</ul></div>
			
 
				-<p>Features that are neither free nor incidental are called
			
 
				-          <span class="emphasis"><em>base</em></span> features.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h4 class="title">
			
 
				-<a name="bbv2.reference.features.declaration"></a>Feature Declaration</h4></div></div></div>
			
 
				-<p>The low-level feature declaration interface is the
			
 
				-          <code class="literal">feature</code> rule from the
			
 
				-          <code class="literal">feature</code> module:
			
 
				-          
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-rule feature ( name : allowed-values * : attributes * )
			
 
				-</pre>
			
 
				-<p>
			
 
				-          
			
 
				-          A feature's allowed-values may be extended with the
			
 
				-          <code class="computeroutput">feature.extend</code> rule.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.variants"></a>Build Variants</h3></div></div></div>
			
 
				-<p>
			
 
				-        A build variant, or (simply variant) is a special kind of composite
			
 
				-        feature that automatically incorporates the default values of
			
 
				-        features that . Typically you'll want at least two separate
			
 
				-        variants: one for debugging, and one for your release code. [
			
 
				-        Volodya says: "Yea, we'd need to mention that it's a composite
			
 
				-        feature and describe how they are declared, in pacticular that
			
 
				-        default values of non-optional features are incorporated into
			
 
				-        build variant automagically. Also, do we wan't some variant
			
 
				-        inheritance/extension/templates. I don't remember how it works in
			
 
				-        V1, so can't document this for V2.". Will clean up soon -DWA ]
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.variants.proprefine"></a>Property refinement</h3></div></div></div>
			
 
				-<p>When a target with certain properties is requested, and that
			
 
				-        target requires some set of properties, it is needed to find the
			
 
				-        set of properties to use for building. This process is called
			
 
				-        <span class="emphasis"><em>property refinement</em></span> and is performed by these rules</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-            Each property in the required set is added to the original
			
 
				-            property set
			
 
				-          </li>
			
 
				-<li>
			
 
				-            If the original property set includes property with a different
			
 
				-            value of non free feature, that property is removed.
			
 
				-          </li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.variants.propcond"></a>Conditional properties</h3></div></div></div>
			
 
				-<p>Sometime it's desirable to apply certain requirements only for
			
 
				-        a specific combination of other properties. For example, one of
			
 
				-        compilers that you use issues a pointless warning that you want to
			
 
				-        suppress by passing a command line option to it. You would not
			
 
				-        want to pass that option to other compilers. Conditional
			
 
				-        properties allow you to do just that. Their syntax is:</p>
			
 
				-<pre class="programlisting">
			
 
				-        property ( "," property ) * ":" property
			
 
				-      </pre>
			
 
				-<p>
			
 
				-        For example, the problem above would be solved by:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp : &lt;toolset&gt;yfc:&lt;cxxflags&gt;-disable-pointless-warning ;
			
 
				-</pre>
			
 
				-<p>The syntax also allows several properties in the condition, for
			
 
				-        example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp : &lt;os&gt;NT,&lt;toolset&gt;gcc:&lt;link&gt;static ;
			
 
				-</pre>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.ids"></a>Target identifiers and references</h3></div></div></div>
			
 
				-<p><span class="emphasis"><em>Target identifier</em></span> is used to denote a
			
 
				-        target. The syntax is:</p>
			
 
				-<pre class="programlisting">
			
 
				-target-id -&gt; (project-id | target-name | file-name )
			
 
				-              | (project-id | directory-name) "//" target-name   
			
 
				-project-id -&gt; path
			
 
				-target-name -&gt; path
			
 
				-file-name -&gt; path
			
 
				-directory-name -&gt; path                  
			
 
				-</pre>
			
 
				-<p>
			
 
				-        This grammar allows some elements to be recognized as either
			
 
				-        
			
 
				-        </p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-              project id (at this point, all project ids start with slash).
			
 
				-            </li>
			
 
				-<li>
			
 
				-              name of target declared in current Jamfile (note that target
			
 
				-              names may include slash).
			
 
				-            </li>
			
 
				-<li>
			
 
				-              a regular file, denoted by absolute name or name relative to
			
 
				-              project's sources location.
			
 
				-            </li>
			
 
				-</ul></div>
			
 
				-<p>
			
 
				-
			
 
				-        To determine the real meaning a check is made if project-id
			
 
				-        by the specified name exists, and then if main target of that
			
 
				-        name exists. For example, valid target ids might be:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-a                                    -- target in current project
			
 
				-lib/b.cpp                            -- regular file
			
 
				-/boost/thread                        -- project "/boost/thread"
			
 
				-/home/ghost/build/lr_library//parser -- target in specific project
			
 
				-</pre>
			
 
				-<p><span class="bold"><strong>Rationale:</strong></span>Target is separated from project by special
			
 
				-        separator (not just slash), because:</p>
			
 
				-<div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-            It emphasises that projects and targets are different things.
			
 
				-          </li>
			
 
				-<li>
			
 
				-            It allows to have main target names with slashes. 
			
 
				-
			
 
				-            </li>
			
 
				-</ul></div>
			
 
				-<p><a name="bbv2.reference.targets.references"></a><span class="emphasis"><em>Target reference</em></span> is used to
			
 
				-        specify a source target, and may additionally specify desired
			
 
				-        properties for that target. It has this syntax:</p>
			
 
				-<pre class="programlisting">
			
 
				-target-reference -&gt; target-id [ "/" requested-properties ]
			
 
				-requested-properties -&gt; property-path
			
 
				-</pre>
			
 
				-<p>
			
 
				-        For example,
			
 
				-
			
 
				-        </p>
			
 
				-<pre class="programlisting">
			
 
				-          exe compiler : compiler.cpp libs/cmdline/&lt;optimization&gt;space ;
			
 
				-        </pre>
			
 
				-<p>
			
 
				-        
			
 
				-        would cause the version of <code class="literal">cmdline</code> library,
			
 
				-        optimized for space, to be linked in even if the
			
 
				-        <code class="literal">compiler</code> executable is build with optimization for
			
 
				-        speed.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Generators</title>
			
 
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				-       /* I think that's just a bit too distracting for the reader... */
			
 
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				-<a name="bbv2.reference.generators"></a>Generators</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="generators.html#id1708734">Selecting and ranking viable generators</a></span></dt>
			
 
				-<dt><span class="section"><a href="generators.html#id1708774">Running generators</a></span></dt>
			
 
				-<dt><span class="section"><a href="generators.html#id1708800">Selecting dependency graph</a></span></dt>
			
 
				-<dt><span class="section"><a href="generators.html#id1708811">Property adjustment</a></span></dt>
			
 
				-<dt><span class="section"><a href="generators.html#id1708854">Transformations cache</a></span></dt>
			
 
				-</dl></div>
			
 
				-<div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Warning</h3>
			
 
				-<p>The information is this section is likely to be outdated
			
 
				-        and misleading. 
			
 
				-      </p>
			
 
				-</div>
			
 
				-<p>To construct a main target with given properties from sources,
			
 
				-      it is required to create a dependency graph for that main target,
			
 
				-      which will also include actions to be run. The algorithm for
			
 
				-      creating the dependency graph is described here.</p>
			
 
				-<p>The fundamental concept is <span class="emphasis"><em>generator</em></span>. If encapsulates
			
 
				-      the notion of build tool and is capable to converting a set of
			
 
				-      input targets into a set of output targets, with some properties.
			
 
				-      Generator matches a build tool as closely as possible: it works
			
 
				-      only when the tool can work with requested properties (for
			
 
				-      example, msvc compiler can't work when requested toolset is gcc),
			
 
				-      and should produce exactly the same targets as the tool (for
			
 
				-      example, if Borland's linker produces additional files with debug
			
 
				-      information, generator should also).</p>
			
 
				-<p>Given a set of generators, the fundamental operation is to
			
 
				-      construct a target of a given type, with given properties, from a
			
 
				-      set of targets. That operation is performed by rule
			
 
				-      <code class="literal">generators.construct</code> and the used algorithm is described
			
 
				-      below.</p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1708734"></a>Selecting and ranking viable generators</h3></div></div></div>
			
 
				-<p>Each generator, in addition to target types that it can
			
 
				-        produce, have attribute that affects its applicability in
			
 
				-        particular sitiation. Those attributes are:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-            Required properties, which are properties absolutely
			
 
				-            necessary for the generator to work. For example, generator
			
 
				-            encapsulating the gcc compiler would have &lt;toolset&gt;gcc as
			
 
				-            required property.
			
 
				-          </li>
			
 
				-<li>
			
 
				-            Optional properties, which increase the generators
			
 
				-            suitability for a particual build.
			
 
				-          </li>
			
 
				-</ol></div>
			
 
				-<p>
			
 
				-        Generator's required and optional properties may not include
			
 
				-        either free or incidental properties. (Allowing this would
			
 
				-        greatly complicate caching targets).
			
 
				-      </p>
			
 
				-<p>When trying to construct a target, the first step is to select
			
 
				-        all possible generators for the requested target type, which
			
 
				-        required properties are a subset of requested properties.
			
 
				-        Generators that were already selected up the call stack are
			
 
				-        excluded. In addition, if any composing generators were selected
			
 
				-        up the call stack, all other composing generators are ignored
			
 
				-        (TODO: define composing generators). The found generators
			
 
				-        are assigned a rank, which is the number of optional properties
			
 
				-        present in requested properties. Finally, generators with highest
			
 
				-        rank are selected for futher processing.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1708774"></a>Running generators</h3></div></div></div>
			
 
				-<p>When generators are selected, each is run to produce a list of
			
 
				-        created targets. This list might include targets that are not of
			
 
				-        requested types, because generators create the same targets as
			
 
				-        some tool, and tool's behaviour is fixed. (Note: should specify
			
 
				-        that in some cases we actually want extra targets). If generator
			
 
				-        fails, it returns an empty list. Generator is free to call
			
 
				-        'construct' again, to convert sources to the types it can handle.
			
 
				-        It also can pass modified properties to 'construct'. However, a
			
 
				-        generator is not allowed to modify any propagated properties,
			
 
				-        otherwise when actually consuming properties we might discover
			
 
				-        that the set of propagated properties is different from what was
			
 
				-        used for building sources.</p>
			
 
				-<p>For all targets that are not of requested types, we try to
			
 
				-        convert them to requested type, using a second call to
			
 
				-        <code class="literal">construct</code>. This is done in order to support
			
 
				-        transformation sequences where single source file expands to
			
 
				-        several later. See <a href="http://groups.yahoo.com/group/jamboost/message/1667" target="_top">this
			
 
				-          message</a> for details.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1708800"></a>Selecting dependency graph</h3></div></div></div>
			
 
				-<p>
			
 
				-        After all generators are run,
			
 
				-        it is necessary to decide which of successfull invocation will be
			
 
				-        taken as final result. At the moment, this is not done. Instead,
			
 
				-        it is checked whether all successfull generator invocation
			
 
				-        returned the same target list. Error is issued otherwise.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1708811"></a>Property adjustment</h3></div></div></div>
			
 
				-<p>Because target location is determined by the build system, it
			
 
				-        is sometimes necessary to adjust properties, in order to not
			
 
				-        break actions. For example, if there's an action that generates
			
 
				-        a header, say "a_parser.h", and a source file "a.cpp" which
			
 
				-        includes that file, we must make everything work as if a_parser.h
			
 
				-        is generated in the same directory where it would be generated
			
 
				-        without any subvariants.</p>
			
 
				-<p>Correct property adjustment can be done only after all targets
			
 
				-        are created, so the approach taken is:</p>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><p>
			
 
				-            When dependency graph is constructed, each action can be
			
 
				-            assigned a rule for property adjustment.
			
 
				-          </p></li>
			
 
				-<li><p>
			
 
				-            When virtual target is actualized, that rule is run and
			
 
				-            return the final set of properties. At this stage it can use
			
 
				-            information of all created virtual targets.
			
 
				-          </p></li>
			
 
				-</ol></div>
			
 
				-<p>In case of quoted includes, no adjustment can give 100% correct
			
 
				-        results. If target dirs are not changed by build system, quoted
			
 
				-        includes are searched in "." and then in include path, while angle
			
 
				-        includes are searched only in include path. When target dirs are
			
 
				-        changed, we'd want to make quoted includes to be search in "." then in
			
 
				-        additional dirs and then in the include path and make angle includes
			
 
				-        be searched in include path, probably with additional paths added at
			
 
				-        some position. Unless, include path already has "." as the first
			
 
				-        element, this is not possible. So, either generated headers should not
			
 
				-        be included with quotes, or first element of include path should be
			
 
				-        ".", which essentially erases the difference between quoted and angle
			
 
				-        includes. <span class="bold"><strong>Note:</strong></span> the only way to get
			
 
				-        "." as include path into compiler command line is via verbatim
			
 
				-        compiler option. In all other case, Boost.Build will convert "." into
			
 
				-        directory where it occurs.</p>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="id1708854"></a>Transformations cache</h3></div></div></div>
			
 
				-<p>
			
 
				-        Under certain conditions, an
			
 
				-        attempt is made to cache results of transformation search. First,
			
 
				-        the sources are replaced with targets with special name and the
			
 
				-        found target list is stored. Later, when properties, requested
			
 
				-        type, and source type are the same, the store target list is
			
 
				-        retrieved and cloned, with appropriate change in names.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
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				-<a name="bbv2.reference.jamfiles"></a>Writing Jamfiles</h2></div></div></div>
			
 
				-<div class="toc"><dl><dt><span class="section"><a href="jamfiles.html#bbv2.reference.headers">Generated headers</a></span></dt></dl></div>
			
 
				-<p>This section describes specific information about writing Jamfiles.</p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.reference.headers"></a>Generated headers</h3></div></div></div>
			
 
				-<p>Usually, Boost.Build handles implicit dependendies completely
			
 
				-        automatically. For example, for C++ files, all <code class="literal">#include</code>
			
 
				-        statements are found and handled. The only aspect where user help
			
 
				-        might be needed is implicit dependency on generated files.</p>
			
 
				-<p>By default, Boost.Build handles such dependencies within one
			
 
				-        main target. For example, assume that main target "app" has two
			
 
				-        sources, "app.cpp" and "parser.y". The latter source is converted
			
 
				-        into "parser.c" and "parser.h". Then, if "app.cpp" includes
			
 
				-        "parser.h", Boost.Build will detect this dependency. Moreover,
			
 
				-        since "parser.h" will be generated into a build directory, the
			
 
				-        path to that directory will automatically added to include
			
 
				-        path.</p>
			
 
				-<p>Making this mechanism work across main target boundaries is
			
 
				-        possible, but imposes certain overhead. For that reason, if
			
 
				-        there's implicit dependency on files from other main targets, the
			
 
				-        <code class="literal">&lt;implicit-dependency&gt;</code> [ link ] feature must
			
 
				-        be used, for example:</p>
			
 
				-<pre class="programlisting">
			
 
				-lib parser : parser.y ;
			
 
				-exe app : app.cpp : &lt;implicit-dependency&gt;parser ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-        The above example tells the build system that when scanning
			
 
				-        all sources of "app" for implicit-dependencies, it should consider
			
 
				-        targets from "parser" as potential dependencies.
			
 
				-      </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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				-<link rel="up" href="../bbv2.html" title="Part III. Boost.Build v2 User Manual">
			
 
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				-<p><b>Table of Contents</b></p>
			
 
				-<dl>
			
 
				-<dt><span class="section"><a href="tutorial.html#bbv2.tutorial.hello">Hello, world</a></span></dt>
			
 
				-<dt><span class="section"><a href="tutorial/properties.html">Properties</a></span></dt>
			
 
				-<dd><dl>
			
 
				-<dt><span class="section"><a href="tutorial/properties.html#bbv2.tutorial.properties.requirements">Build Requests and Target Requirements</a></span></dt>
			
 
				-<dt><span class="section"><a href="tutorial/properties.html#bbv2.tutorial.properties.project_attributes">Project Attributes</a></span></dt>
			
 
				-</dl></dd>
			
 
				-<dt><span class="section"><a href="tutorial/hierarchy.html">Project Hierarchies</a></span></dt>
			
 
				-<dt><span class="section"><a href="tutorial/libs.html">Dependent Targets</a></span></dt>
			
 
				-<dt><span class="section"><a href="tutorial/linkage.html">Static and shared libaries</a></span></dt>
			
 
				-<dt><span class="section"><a href="tutorial/conditions.html">Conditions and alternatives</a></span></dt>
			
 
				-<dt><span class="section"><a href="tutorial/prebuilt.html">Prebuilt targets</a></span></dt>
			
 
				-</dl>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.hello"></a>Hello, world</h2></div></div></div>
			
 
				-<p>The simplest project that Boost.Build can construct is
			
 
				-      stored in <code class="filename">example/hello/</code> directory. The
			
 
				-      project is described by a file
			
 
				-      called <code class="filename">Jamroot</code> that contains:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello : hello.cpp ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      Even with this simple setup, you can do some interesting
			
 
				-      things. First of all, just invoking <span><strong class="command">bjam</strong></span> will
			
 
				-      build the <code class="filename">hello</code>
			
 
				-      executable by compiling and
			
 
				-      linking <code class="filename">hello.cpp</code>. By default, debug variant 
			
 
				-      is built. Now, to build the
			
 
				-      release variant of <code class="filename">hello</code>, invoke 
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-bjam release
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      Note that debug and release variants are created in different
			
 
				-      directories, so you can switch between variants or even build
			
 
				-      multiple variants at once, without any unnecessary
			
 
				-      recompilation. Let's extend the example by adding another line
			
 
				-      to our project's <code class="filename">Jamroot</code>:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello2 : hello.cpp ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      Now let us build both the debug and release variants of our project
			
 
				-      again:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-bjam debug release
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      Note that two variants of <code class="filename">hello2</code> are linked.
			
 
				-      Since we have already built both variants
			
 
				-      of <code class="filename">hello</code>, hello.cpp won't be recompiled;
			
 
				-      instead the existing object files will just be linked into the
			
 
				-      corresponding variants of <code class="filename">hello2</code>. Now 
			
 
				-      let's remove all the built products:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-bjam --clean debug release
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      It's also possible to build or clean specific targets.  The
			
 
				-      following two commands, respectively, build or clean only the
			
 
				-      debug version of <code class="filename">hello2</code>.
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-bjam hello2
			
 
				-bjam --clean hello2
			
 
				-</pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
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				-<html>
			
 
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				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.conditions"></a>Conditions and alternatives</h2></div></div></div>
			
 
				-<p>Sometimes, particular relationships need to be maintained
			
 
				-    among a target's build properties. This can be achieved with 
			
 
				-    <em class="firstterm">conditional
			
 
				-    requirement</em>. For example, you might want to set
			
 
				-    specific <code class="computeroutput">#defines</code> when a library is built as shared,
			
 
				-    or when a target's <code class="computeroutput">release</code> variant is built in
			
 
				-    release mode.
			
 
				-    </p>
			
 
				-<pre class="programlisting">
			
 
				-lib network : network.cpp 
			
 
				-    : <span class="bold"><strong>&lt;link&gt;shared:&lt;define&gt;NEWORK_LIB_SHARED</strong></span>
			
 
				-     &lt;variant&gt;release:&lt;define&gt;EXTRA_FAST
			
 
				-    ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      In the example above, whenever <code class="filename">network</code> is
			
 
				-      built with <code class="computeroutput">&lt;link&gt;shared</code>,
			
 
				-      <code class="computeroutput">&lt;define&gt;NEWORK_LIB_SHARED</code> will be in its
			
 
				-      properties, too.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Sometimes the ways a target is built are so different that
			
 
				-      describing them using conditional requirements would be
			
 
				-      hard. For example, imagine that a library actually uses
			
 
				-      different source files depending on the toolset used to build
			
 
				-      it. We can express this situation using <em class="firstterm">target
			
 
				-      alternatives</em>:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib demangler : dummy_demangler.cpp ;                      # alternative 1
			
 
				-lib demangler : demangler_gcc.cpp : &lt;toolset&gt;gcc ;   # alternative 2
			
 
				-lib demangler : demangler_msvc.cpp : &lt;toolset&gt;msvc ; # alternative 3
			
 
				-</pre>
			
 
				-<p>
			
 
				-        In the example above, when built with <code class="literal">gcc</code>
			
 
				-        or <code class="literal">msvc</code>, <code class="filename">demangler</code>
			
 
				-        will use a source file specific to the toolset.  Otherwise, it
			
 
				-        will use a generic source file,
			
 
				-        <code class="filename">dummy_demangler.cpp</code>.
			
 
				-    </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
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				-</body>
			
 
				-</html>
			
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				-<html>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Project Hierarchies</title>
			
 
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				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.hierarchy"></a>Project Hierarchies</h2></div></div></div>
			
 
				-<p>So far we've only considered examples with one project
			
 
				-    (i.e. with one user-written Boost.Jam file,
			
 
				-    <code class="filename">Jamroot</code>). A typical large codebase would be
			
 
				-    composed of many projects organized into a tree. The top of the
			
 
				-    tree is called the <em class="firstterm">project root</em>.  Every
			
 
				-    subproject is defined by a file called
			
 
				-    <code class="filename">Jamfile</code> in a descendant directory of the
			
 
				-    project root.  The parent project of a subproject is defined by
			
 
				-    the nearest <code class="filename">Jamfile</code> or
			
 
				-    <code class="filename">Jamroot</code> file in an ancestor directory. For
			
 
				-    example, in the following directory layout:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-top/ 
			
 
				-  |
			
 
				-  +-- Jamroot
			
 
				-  |
			
 
				-  +-- app/
			
 
				-  |    |
			
 
				-  |    +-- Jamfile
			
 
				-  |    `-- app.cpp
			
 
				-  | 
			
 
				-  `-- util/
			
 
				-       |
			
 
				-       +-- foo/
			
 
				-       .    |
			
 
				-       .    +-- Jamfile
			
 
				-       .    `-- bar.cpp
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      the project root is <code class="filename">top/</code>.  Because there is
			
 
				-      no <code class="filename">Jamfile</code> in
			
 
				-      <code class="filename">top/util/</code>, the projects in
			
 
				-      <code class="filename">top/app/</code> and
			
 
				-      <code class="filename">top/util/foo/</code> are immediate children of the
			
 
				-      root project.
			
 
				-
			
 
				-      </p>
			
 
				-<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Note</h3>
			
 
				-<p>
			
 
				-          When we refer to a &#8220;Jamfile,&#8221; set in normal
			
 
				-          type, we mean a file called either
			
 
				-          <code class="filename">Jamfile</code> or
			
 
				-          <code class="filename">Jamroot</code>.  When we need to be more
			
 
				-          specific, the filename will be set as
			
 
				-          &#8220;<code class="filename">Jamfile</code>&#8221; or
			
 
				-          &#8220;<code class="filename">Jamroot</code>.&#8221;
			
 
				-        </p>
			
 
				-</div>
			
 
				-<p>
			
 
				-      Projects inherit all attributes (such as requirements)
			
 
				-      from their parents.  Inherited requirements are combined with
			
 
				-      any requirements specified by the sub-project.  
			
 
				-      For example, if <code class="filename">top/Jamroot</code> has
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-&lt;include&gt;/home/ghost/local
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      in its requirements, then all of its sub-projects will have it
			
 
				-      in their requirements, too.  Of course, any project can add
			
 
				-      include paths to those specified by its parents. <sup>[<a name="id1701983" href="#ftn.id1701983">5</a>]</sup> 
			
 
				-    More details can be found in 
			
 
				-      <a href="../advanced/jamfiles.html#bbv2.advanced.projects" title="Projects">the section called &#8220;Projects&#8221;</a>.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Invoking <span><strong class="command">bjam</strong></span> without explicitly specifying
			
 
				-      any targets on the command-line builds the project rooted in the
			
 
				-      current directory.  Building a project does not automatically
			
 
				-      cause its sub-projects to be built unless the parent project's
			
 
				-      Jamfile explicitly requests it. In our example,
			
 
				-      <code class="filename">top/Jamroot</code> might contain:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-build-project app ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      which would cause the project in <code class="filename">top/app/</code>
			
 
				-      to be built whenever the project in <code class="filename">top/</code> is
			
 
				-      built. However, targets in <code class="filename">top/util/foo/</code>
			
 
				-      will be built only if they are needed by targets in
			
 
				-      <code class="filename">top/</code> or <code class="filename">top/app/</code>.
			
 
				-    </p>
			
 
				-<div class="footnotes">
			
 
				-<br><hr width="100" align="left">
			
 
				-<div class="footnote"><p><sup>[<a name="ftn.id1701983" href="#id1701983">5</a>] </sup>Many
			
 
				-      features will be overridden,
			
 
				-      rather than added-to, in sub-projects.  See <a href="../reference/definitions.html#bbv2.reference.features.attributes" title="Feature Attributes">the section called &#8220;Feature Attributes&#8221;</a> for more
			
 
				-      information</p></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
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				-       /* I think that's just a bit too distracting for the reader... */
			
 
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				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.libs"></a>Dependent Targets</h2></div></div></div>
			
 
				-<p>
			
 
				-      Targets that are &#8220;needed&#8221; by other targets are called
			
 
				-      <em class="firstterm">dependencies</em> of those other targets.  The
			
 
				-      targets that need the other targets are called
			
 
				-      <em class="firstterm">dependent</em> targets.
			
 
				-    </p>
			
 
				-<p>To get a feeling of target dependencies, let's continue the
			
 
				-      above example and see how <code class="filename">top/app/Jamfile</code> can
			
 
				-      use libraries from <code class="filename">top/util/foo</code>.  If
			
 
				-      <code class="filename">top/util/foo/Jamfile</code> contains
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib bar : bar.cpp ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      then to use this library in <code class="filename">top/app/Jamfile</code>, we can
			
 
				-      write:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe app : app.cpp ../util/foo//bar ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      While <code class="computeroutput">app.cpp</code> refers to a regular source file,
			
 
				-      <code class="computeroutput">../util/foo//bar</code> is a reference to another target:
			
 
				-      a library <code class="filename">bar</code> declared in the Jamfile at
			
 
				-      <code class="filename">../util/foo</code>. 
			
 
				-    </p>
			
 
				-<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Tip</h3>
			
 
				-<p>Some other build system have special syntax for listing dependent
			
 
				-      libraries, for example <code class="varname">LIBS</code> variable. In Boost.Build,
			
 
				-      you just add the library to the list of sources.
			
 
				-      </p>
			
 
				-</div>
			
 
				-<p>Suppose we build <code class="filename">app</code> with:
			
 
				-    </p>
			
 
				-<pre class="screen">
			
 
				-bjam app optimization=full define=USE_ASM
			
 
				-    </pre>
			
 
				-<p>
			
 
				-    Which properties will be used to build <code class="computeroutput">foo</code>? The answer is
			
 
				-    that some features are
			
 
				-    <em class="firstterm">propagated</em>&#8212;Boost.Build attempts to use
			
 
				-    dependencies with the same value of propagated features. The
			
 
				-    <code class="varname">&lt;optimization&gt;</code> feature is propagated, so both
			
 
				-    <code class="filename">app</code> and <code class="filename">foo</code> will be compiled
			
 
				-    with full optimization. But <code class="varname">&lt;define&gt;</code> is not
			
 
				-    propagated: its value will be added as-is to the compiler flags for
			
 
				-    <code class="filename">a.cpp</code>, but won't affect <code class="filename">foo</code>.
			
 
				-    </p>
			
 
				-<p>Let's improve this project further.
			
 
				-      The library
			
 
				-      probably has some headers that must be used when compiling
			
 
				-      <code class="filename">app.cpp</code>. We could manually add the necessary
			
 
				-      <code class="computeroutput">#include</code> paths to <code class="filename">app</code>'s
			
 
				-      requirements as values of the
			
 
				-      <code class="varname">&lt;include&gt;</code> feature, but then this work will 
			
 
				-      be repeated for all programs
			
 
				-      that use <code class="filename">foo</code>. A better solution is to modify
			
 
				-      <code class="filename">util/foo/Jamfile</code> in this way:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-project 
			
 
				-    : usage-requirements &lt;include&gt;.
			
 
				-    ;
			
 
				-
			
 
				-lib foo : foo.cpp ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      Usage requirements are applied not to the target being declared
			
 
				-      but to its
			
 
				-      dependents. In this case, <code class="literal">&lt;include&gt;.</code> will be applied to all
			
 
				-      targets that directly depend on <code class="filename">foo</code>.
			
 
				-    </p>
			
 
				-<p>Another improvement is using symbolic identifiers to refer to
			
 
				-      the library, as opposed to <code class="filename">Jamfile</code> location.
			
 
				-      In a large project, a library can be used by many targets, and if 
			
 
				-      they all use <code class="filename">Jamfile</code> location,
			
 
				-      a change in directory organization entails much work.
			
 
				-      The solution is to use project ids&#8212;symbolic names
			
 
				-      not tied to directory layout. First, we need to assign a project id by
			
 
				-      adding this code to
			
 
				-      <code class="filename">Jamroot</code>:</p>
			
 
				-<pre class="programlisting">
			
 
				-use-project /library-example/foo : util/foo ;
			
 
				-      </pre>
			
 
				-<p>Second, we modify <code class="filename">app/Jamfile</code> to use the
			
 
				-      project id:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe app : app.cpp /library-example/foo//bar ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-The <code class="filename">/library-example/foo//bar</code> syntax is used 
			
 
				-      to refer to the target <code class="filename">bar</code> in
			
 
				-      the project with id <code class="filename">/library-example/foo</code>.
			
 
				-      We've achieved our goal&#8212;if the library is moved to a different
			
 
				-      directory, only <code class="filename">Jamroot</code> must be modified.
			
 
				-      Note that project ids are global&#8212;two Jamfiles are not
			
 
				-      allowed to assign the same project id to different directories.
			
 
				-           
			
 
				-    </p>
			
 
				-<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Tip</h3>
			
 
				-<p>If you want all applications in some project to link
			
 
				-      to a certain library, you can avoid having to specify it directly the sources of every
			
 
				-      target by using the
			
 
				-      <code class="varname">&lt;source&gt;</code> property. For example, if <code class="filename">/boost/filesystem//fs</code>
			
 
				-      should be linked to all applications in your project, you can add
			
 
				-      <code class="computeroutput">&lt;source&gt;/boost/filesystem//fs</code> to the project's requirements, like this:</p>
			
 
				-<pre class="programlisting">
			
 
				-project 
			
 
				-   : requirements &lt;source&gt;/boost/filesystem//fs
			
 
				-   ;   
			
 
				-      </pre>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
				-<a accesskey="p" href="hierarchy.html"><img src="../../images/prev.png" alt="Prev"></a><a accesskey="u" href="../tutorial.html"><img src="../../images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../images/home.png" alt="Home"></a><a accesskey="n" href="linkage.html"><img src="../../images/next.png" alt="Next"></a>
			
 
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				-</body>
			
 
				-</html>
			
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				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.linkage"></a>Static and shared libaries</h2></div></div></div>
			
 
				-<p>Libraries can be either
			
 
				-    <span class="emphasis"><em>static</em></span>, which means they are included in executable
			
 
				-    files that use them, or <span class="emphasis"><em>shared</em></span> (a.k.a.
			
 
				-    <span class="emphasis"><em>dynamic</em></span>), which are only referred to from executables,
			
 
				-    and must be available at run time. Boost.Build can create and use both kinds.
			
 
				-    </p>
			
 
				-<p>The kind of library produced from a <code class="computeroutput">lib</code> target is
			
 
				-    determined by the value of the <code class="varname">link</code> feature. Default
			
 
				-    value is <code class="literal">shared</code>, and to build static library, the value
			
 
				-    should be <code class="literal">static</code>. You can either requiest static build
			
 
				-    on the command line:
			
 
				-    </p>
			
 
				-<pre class="screen">
			
 
				-bjam link=static
			
 
				-    </pre>
			
 
				-<p>
			
 
				-    or in the library's requirements:    
			
 
				-    </p>
			
 
				-<pre class="programlisting">
			
 
				-lib l : l.cpp : &lt;link&gt;static ;
			
 
				-    </pre>
			
 
				-<p>
			
 
				-      We can also use the <code class="varname">&lt;link&gt;</code> property
			
 
				-      to express linking requirements on a per-target basis.  
			
 
				-      For example, if a particular executable can be correctly built
			
 
				-      only with the static version of a library, we can qualify the
			
 
				-      executable's <a href="../reference/definitions.html#bbv2.reference.targets.references">target
			
 
				-      reference</a> to the library as follows:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe important : main.cpp helpers/&lt;link&gt;static ;</pre>
			
 
				-<p>
			
 
				-
			
 
				-    No matter what arguments are specified on the <span><strong class="command">bjam</strong></span>
			
 
				-    command-line, <code class="filename">important</code> will only be linked with
			
 
				-    the static version of <code class="filename">helpers</code>.
			
 
				-    </p>
			
 
				-<p>
			
 
				-        Specifying properties in target references is especially useful if you
			
 
				-        use a library defined in some other project (one you can't
			
 
				-        change) but you still want static (or dynamic) linking to that library
			
 
				-        in all cases. If that library is used by many targets,
			
 
				-        you <span class="emphasis"><em>could</em></span> use target references
			
 
				-        everywhere:
			
 
				-
			
 
				-        </p>
			
 
				-<pre class="programlisting">
			
 
				-exe e1 : e1.cpp /other_project//bar/&lt;link&gt;static ;
			
 
				-exe e10 : e10.cpp /other_project//bar/&lt;link&gt;static ;</pre>
			
 
				-<p>
			
 
				-
			
 
				-        but that's far from being convenient. A better approach is
			
 
				-        to introduce a level of indirection.  Create a local
			
 
				-        <span class="type">alias</span> target that refers to the static (or
			
 
				-        dynamic) version of <code class="filename">foo</code>:
			
 
				-
			
 
				-        </p>
			
 
				-<pre class="programlisting">
			
 
				-alias foo : /other_project//bar/&lt;link&gt;static ;
			
 
				-exe e1 : e1.cpp foo ;
			
 
				-exe e10 : e10.cpp foo ;</pre>
			
 
				-<p>
			
 
				-
			
 
				-        The <a href="../advanced/builtins/targets.html#bbv2.builtins.alias" title="Alias"><code class="computeroutput">alias</code></a> 
			
 
				-        rule is specifically used to rename a reference to a target and possibly
			
 
				-        change the properties.
			
 
				-        
			
 
				-        </p>
			
 
				-<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Tip</h3>
			
 
				-<p>
			
 
				-          When one library uses another, you put the second library is
			
 
				-          the source list of the first. For example:
			
 
				-          </p>
			
 
				-<pre class="programlisting">
			
 
				-lib utils : utils.cpp /boost/filesystem//fs ;   
			
 
				-lib core : core.cpp utils ;
			
 
				-exe app : app.cpp core ;</pre>
			
 
				-<p>
			
 
				-          This works no matter what kind of linking is used. When 
			
 
				-          <code class="filename">core</code> is built as a shared library, it is linked
			
 
				-          directly into <code class="filename">utils</code>. Static libraries can't
			
 
				-          link to other libraries, so when <code class="filename">core</code> is built
			
 
				-          as a static library, its dependency on <code class="filename">utils</code> is passed along to
			
 
				-          <code class="filename">core</code>'s dependents, causing
			
 
				-          <code class="filename">app</code> to be linked with both
			
 
				-          <code class="filename">core</code> and <code class="filename">utils</code>."
			
 
				-        </p>
			
 
				-</div>
			
 
				-<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Note</h3>
			
 
				-<p>(Note for non-UNIX system). Typically, shared libraries must be
			
 
				-        installed to a directory in the dynamic linker's search
			
 
				-        path. Otherwise, applications that use shared libraries can't be
			
 
				-        started. On Windows, the dynamic linker's search path is given by the
			
 
				-        <code class="envar">PATH</code> environment variable. This restriction is lifted
			
 
				-        when you use Boost.Build testing facilities&#8212;the
			
 
				-        <code class="envar">PATH</code> variable will be automatically adjusted before
			
 
				-        running executable.
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small></small></td>
			
 
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				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.prebuilt"></a>Prebuilt targets</h2></div></div></div>
			
 
				-<p>
			
 
				-      To link to libraries whose build instructions aren't given in a Jamfile,
			
 
				-      you need to create <code class="computeroutput">lib</code> targets with an appropriate
			
 
				-      <code class="varname">file</code> property.  Target alternatives can be used to
			
 
				-      associate multiple library files with a single conceptual target. For
			
 
				-      example:
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-# util/lib2/Jamfile
			
 
				-lib lib2
			
 
				-    : 
			
 
				-    : &lt;file&gt;lib2_release.a &lt;variant&gt;release
			
 
				-    ;
			
 
				-
			
 
				-lib lib2
			
 
				-    : 
			
 
				-    : &lt;file&gt;lib2_debug.a &lt;variant&gt;debug
			
 
				-    ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      This example defines two alternatives for <code class="filename">lib2</code>, and
			
 
				-      for each one names a prebuilt file.  Naturally, there are no sources.
			
 
				-      Instead, the <code class="varname">&lt;file&gt;</code> feature is used to specify
			
 
				-      the file name.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      Once a prebuilt target has been declared, it can be used just like any other target:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-exe app : app.cpp ../util/lib2//lib2 ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      As with any target, the alternative selected depends on the
			
 
				-      properties propagated from <code class="filename">lib2</code>'s dependents.
			
 
				-      If we build the the release and debug versions of <code class="filename">app</code> will be linked
			
 
				-      with <code class="filename">lib2_release.a</code> and <code class="filename">lib2_debug.a</code>, respectively.  
			
 
				-
			
 
				-    </p>
			
 
				-<p>
			
 
				-      System libraries&#8212;those that are automatically found by
			
 
				-      the toolset by searching through some set of predetermined
			
 
				-      paths&#8212;should be declared almost like regular ones:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib pythonlib : : &lt;name&gt;python22 ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      We again don't specify any sources, but give a
			
 
				-      <code class="varname">name</code> that should be passed to the
			
 
				-      compiler. If the gcc toolset were used to link an executable
			
 
				-      target to <code class="filename">pythonlib</code>, <code class="option">-lpython22</code>
			
 
				-      would appear in the command line (other compilers may use
			
 
				-      different options). 
			
 
				-    </p>
			
 
				-<p>
			
 
				-      We can also specify where the toolset should look for the library:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib pythonlib : : &lt;name&gt;python22 &lt;search&gt;/opt/lib ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-      And, of course, target alternatives can be used in the usual way:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-lib pythonlib : : &lt;name&gt;python22 &lt;variant&gt;release ;
			
 
				-lib pythonlib : : &lt;name&gt;python22_d &lt;variant&gt;debug ;
			
 
				-</pre>
			
 
				-<p>A more advanced use of prebuilt targets is described in <a href="../recipies/site-config.html" title="Targets in site-config.jam">the section called &#8220;Targets in site-config.jam&#8221;</a>.    
			
 
				-    </p>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
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				-<div class="titlepage"><div><div><h2 class="title" style="clear: both">
			
 
				-<a name="bbv2.tutorial.properties"></a>Properties</h2></div></div></div>
			
 
				-<div class="toc"><dl>
			
 
				-<dt><span class="section"><a href="properties.html#bbv2.tutorial.properties.requirements">Build Requests and Target Requirements</a></span></dt>
			
 
				-<dt><span class="section"><a href="properties.html#bbv2.tutorial.properties.project_attributes">Project Attributes</a></span></dt>
			
 
				-</dl></div>
			
 
				-<p>
			
 
				-      To portably represent aspects of target configuration such as
			
 
				-      debug and release variants, or single- and multi-threaded
			
 
				-      builds, Boost.Build uses <em class="firstterm">features</em> with
			
 
				-      associated <em class="firstterm">values</em>.  For
			
 
				-      example, the <code class="computeroutput">debug-symbols</code> feature can have a value of <code class="computeroutput">on</code> or
			
 
				-      <code class="computeroutput">off</code>.  A <em class="firstterm">property</em> is just a (feature,
			
 
				-      value) pair.  When a user initiates a build, Boost.Build
			
 
				-      automatically translates the requested properties into appropriate
			
 
				-      command-line flags for invoking toolset components like compilers
			
 
				-      and linkers.</p>
			
 
				-<p>There are many built-in features that can be combined to
			
 
				-      produce arbitrary build configurations.  The following command
			
 
				-      builds the project's <code class="computeroutput">release</code> variant with inlining
			
 
				-      disabled and debug symbols enabled:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen">
			
 
				-bjam release inlining=off debug-symbols=on
			
 
				-</pre>
			
 
				-<p>Properties on the command-line are specified with the syntax:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="screen"><em class="replaceable"><code>feature-name</code></em>=<em class="replaceable"><code>feature-value</code></em></pre>
			
 
				-<p>The <code class="option">release</code> and <code class="option">debug</code> that we've seen
			
 
				-      in <span><strong class="command">bjam</strong></span> invocations are just a shorthand way to
			
 
				-      specify values of the <code class="varname">variant</code> feature.  For example, the command
			
 
				-      above could also have been written this way:
			
 
				-
			
 
				-      </p>
			
 
				-<pre class="screen">
			
 
				-bjam variant=release inlining=off debug-symbols=on
			
 
				-      </pre>
			
 
				-<p><code class="varname">variant</code> is so commonly-used that it has
			
 
				-      been given special status as an <em class="firstterm">implicit</em>
			
 
				-      feature&#8212;Boost.Build will deduce the its identity just
			
 
				-      from the name of one of its values.
			
 
				-    </p>
			
 
				-<p>
			
 
				-      A complete description of features can be found in <a href="../reference/definitions.html#bbv2.reference.features" title="Features and properties">the section called &#8220;Features and properties&#8221;</a>.
			
 
				-    </p>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.tutorial.properties.requirements"></a>Build Requests and Target Requirements</h3></div></div></div>
			
 
				-<p>      
			
 
				-        The set of properties specified on the command line constitute
			
 
				-        a <em class="firstterm">build request</em>&#8212;a description of
			
 
				-        the desired properties for building the requested targets (or,
			
 
				-        if no targets were explicitly requested, the project in the
			
 
				-        current directory).  The <span class="emphasis"><em>actual</em></span>
			
 
				-        properties used for building targets are typically a
			
 
				-        combination of the build request and properties derived from
			
 
				-        the project's <code class="filename">Jamroot</code> (and its other
			
 
				-        Jamfiles, as described in <a href="hierarchy.html" title="Project Hierarchies">the section called &#8220;Project Hierarchies&#8221;</a>).  For example, the
			
 
				-        locations of <code class="computeroutput">#include</code>d header files are normally
			
 
				-        not specified on the command-line, but described in
			
 
				-        Jamfiles as <em class="firstterm">target
			
 
				-        requirements</em> and automatically combined with the
			
 
				-        build request for those targets.  Multithread-enabled
			
 
				-        compilation is another example of a typical target
			
 
				-        requirement.  The Jamfile fragment below
			
 
				-        illustrates how these requirements might be specified.
			
 
				-      </p>
			
 
				-<pre class="programlisting">
			
 
				-exe hello 
			
 
				-    : hello.cpp
			
 
				-    : &lt;include&gt;boost &lt;threading&gt;multi
			
 
				-    ;
			
 
				-</pre>
			
 
				-<p> 
			
 
				-        When <code class="filename">hello</code> is built, the two
			
 
				-        requirements specified above will always be present. 
			
 
				-        If the build request given on the <span><strong class="command">bjam</strong></span>
			
 
				-        command-line explictly contradicts a target's requirements,
			
 
				-        the target requirements usually override (or, in the case of
			
 
				-        &#8220;free&#8221; features like
			
 
				-        <code class="varname">&lt;include&gt;</code>,
			
 
				-        <sup>[<a name="id1701753" href="#ftn.id1701753">4</a>]</sup>
			
 
				-        augments) the build request.
			
 
				-
			
 
				-      </p>
			
 
				-<div class="tip" style="margin-left: 0.5in; margin-right: 0.5in;">
			
 
				-<h3 class="title">Tip</h3>
			
 
				-<p>The value of the <code class="varname">&lt;include&gt;</code> feature is
			
 
				-          relative to the location of <code class="filename">Jamroot</code> where it's
			
 
				-          used. 
			
 
				-        </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<div class="section" lang="en">
			
 
				-<div class="titlepage"><div><div><h3 class="title">
			
 
				-<a name="bbv2.tutorial.properties.project_attributes"></a>Project Attributes</h3></div></div></div>
			
 
				-<p>
			
 
				-        If we want the same requirements for our other
			
 
				-        target, <code class="filename">hello2</code>, we could simply duplicate
			
 
				-        them.  However, as projects grow, that approach leads to a great
			
 
				-        deal of repeated boilerplate in Jamfiles.
			
 
				-        
			
 
				-        Fortunately, there's a better way. Each project can specify a
			
 
				-        set of <em class="firstterm">attributes</em>, including
			
 
				-        requirements:
			
 
				-
			
 
				-</p>
			
 
				-<pre class="programlisting">
			
 
				-project 
			
 
				-    : requirements &lt;include&gt;/home/ghost/Work/boost &lt;threading&gt;multi 
			
 
				-    ;
			
 
				-
			
 
				-exe hello : hello.cpp ;
			
 
				-exe hello2 : hello.cpp ;
			
 
				-</pre>
			
 
				-<p>
			
 
				-
			
 
				-        The effect would be as if we specified the same requirement for
			
 
				-        both <code class="filename">hello</code> and <code class="filename">hello2</code>.
			
 
				-      </p>
			
 
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				-<br><hr width="100" align="left">
			
 
				-<div class="footnote"><p><sup>[<a name="ftn.id1701753" href="#id1701753">4</a>] </sup>
			
 
				-See <a href="../reference/definitions.html#bbv2.reference.features.attributes" title="Feature Attributes">the section called &#8220;Feature Attributes&#8221;</a></p></div>
			
 
				-</div>
			
 
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				-<a name="bool_switch"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Function bool_switch</span></h2>
			
 
				-<p>boost::program_options::bool_switch &#8212; </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="type">BOOST_PROGRAM_OPTIONS_DECL <a href="typed_value.html" title="Class template typed_value">typed_value</a>&lt; <span class="bold"><strong>bool</strong></span> &gt; *</span> bool_switch();
			
 
				-<span class="type">BOOST_PROGRAM_OPTIONS_DECL <a href="typed_value.html" title="Class template typed_value">typed_value</a>&lt; <span class="bold"><strong>bool</strong></span> &gt; *</span> bool_switch(<span class="bold"><strong>bool</strong></span> * v);</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1276862"></a><h2>Description</h2>
			
 
				-<p>Works the same way as the 'value' function, but the created value_semantic won't accept any explicit value. So, if the option is present on the command line, the value will be 'true'. </p>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2002-2004 Vladimir Prus</small></td>
			
 
				-</tr></table>
			
 
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				-</html>
			
--- a/doc/html/boost/any.html
+++ b/doc/html/boost/any.html
@@ -1,186 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Class any</title>
			
 
				-<link rel="stylesheet" href="../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../any/reference.html#header.boost.any.hpp" title="Header &lt;boost/any.hpp&gt;">
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="boost.any"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class any</span></h2>
			
 
				-<p>boost::any &#8212; A class whose instances can hold instances of any
			
 
				-          type that satisfies <a href="../any/reference.html#any.ValueType" title="ValueType requirements">ValueType</a>
			
 
				-          requirements.</p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> any {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// <a href="any.html#boost.anyconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="any.html#id691864-bb">any</a>();
			
 
				-  <a href="any.html#id691852-bb">any</a>(<span class="bold"><strong>const</strong></span> <a href="any.html" title="Class any">any</a> &amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <a href="any.html#id759379-bb">any</a>(<span class="bold"><strong>const</strong></span> ValueType &amp;);
			
 
				-  <span class="type"><a href="any.html" title="Class any">any</a> &amp;</span> <a href="any.html#id755290-bb"><span class="bold"><strong>operator</strong></span>=</a>(<span class="bold"><strong>const</strong></span> <a href="any.html" title="Class any">any</a> &amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type"><a href="any.html" title="Class any">any</a> &amp;</span> <a href="any.html#id591278-bb"><span class="bold"><strong>operator</strong></span>=</a>(<span class="bold"><strong>const</strong></span> ValueType &amp;);
			
 
				-  <a href="any.html#id756388-bb">~any</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="any.html#id720717-bb">modifiers</a></em></span>
			
 
				-  <span class="type"><a href="any.html" title="Class any">any</a> &amp;</span> <a href="any.html#id722843-bb">swap</a>(<a href="any.html" title="Class any">any</a> &amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="any.html#id761589-bb">queries</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="any.html#id761592-bb">empty</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> std::type_info &amp;</span> <a href="any.html#id761615-bb">type</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id970852"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id970855"></a><h3>
			
 
				-<a name="boost.anyconstruct-copy-destruct"></a><code class="computeroutput">any</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id691864-bb"></a>any();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">this-&gt;<a href="any.html#id761592-bb">empty</a>()</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id691852-bb"></a>any(<span class="bold"><strong>const</strong></span> <a href="any.html" title="Class any">any</a> &amp; other);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-     Copy constructor that copies content of
			
 
				-            <code class="computeroutput">other</code> into new instance, so that any content
			
 
				-            is equivalent in both type and value to the content of
			
 
				-            <code class="computeroutput">other</code>, or empty if <code class="computeroutput">other</code> is
			
 
				-            empty. <br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    May fail with a
			
 
				-            <code class="computeroutput">std::bad_alloc</code>
			
 
				-            exception or any exceptions arising from the copy
			
 
				-            constructor of the contained type.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <a name="id759379-bb"></a>any(<span class="bold"><strong>const</strong></span> ValueType &amp; value);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Makes a copy of <code class="computeroutput">value</code>, so
			
 
				-            that the initial content of the new instance is equivalent
			
 
				-            in both type and value to
			
 
				-            <code class="computeroutput">value</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::bad_alloc</code>
			
 
				-            or any exceptions arising from the copy constructor of the
			
 
				-            contained type.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><a href="any.html" title="Class any">any</a> &amp;</span> <a name="id755290-bb"></a><span class="bold"><strong>operator</strong></span>=(<span class="bold"><strong>const</strong></span> <a href="any.html" title="Class any">any</a> &amp; rhs);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Copies content of <code class="computeroutput">rhs</code> into
			
 
				-            current instance, discarding previous content, so that the
			
 
				-            new content is equivalent in both type and value to the
			
 
				-            content of <code class="computeroutput">rhs</code>, or empty if
			
 
				-            <code class="computeroutput">rhs.<a href="any.html#id761592-bb">empty</a>()</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::bad_alloc</code>
			
 
				-            or any exceptions arising from the copy constructor of the
			
 
				-            contained type. Assignment satisfies the strong guarantee
			
 
				-            of exception safety.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> ValueType&gt; <span class="type"><a href="any.html" title="Class any">any</a> &amp;</span> <a name="id591278-bb"></a><span class="bold"><strong>operator</strong></span>=(<span class="bold"><strong>const</strong></span> ValueType &amp; rhs);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Makes a copy of <code class="computeroutput">rhs</code>,
			
 
				-            discarding previous content, so that the new content of is
			
 
				-            equivalent in both type and value to
			
 
				-            <code class="computeroutput">rhs</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::bad_alloc</code>
			
 
				-            or any exceptions arising from the copy constructor of the
			
 
				-            contained type. Assignment satisfies the strong guarantee
			
 
				-            of exception safety.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id756388-bb"></a>~any();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Releases any and all resources used in
			
 
				-            management of instance.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Nothing.</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id971249"></a><h3>
			
 
				-<a name="id720717-bb"></a><code class="computeroutput">any</code> modifiers</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="type"><a href="any.html" title="Class any">any</a> &amp;</span> <a name="id722843-bb"></a>swap(<a href="any.html" title="Class any">any</a> &amp; rhs);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Exchange of the contents of
			
 
				-              <code class="computeroutput">*this</code> and
			
 
				-              <code class="computeroutput">rhs</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">*this</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Nothing.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id971335"></a><h3>
			
 
				-<a name="id761589-bb"></a><code class="computeroutput">any</code> queries</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id761592-bb"></a>empty() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">true</code> if instance is
			
 
				-              empty, otherwise <code class="computeroutput">false</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> std::type_info &amp;</span> <a name="id761615-bb"></a>type() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    the <code class="computeroutput">typeid</code> of the
			
 
				-              contained value if instance is non-empty, otherwise
			
 
				-              <code class="computeroutput">typeid(void)</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Notes</span></b>:
			
 
				-
			
 
				-    Useful for querying against types known
			
 
				-              either at compile time or only at
			
 
				-              runtime.</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001 Kevlin Henney</small></td>
			
 
				-</tr></table>
			
 
				-<hr>
			
 
				-<div class="spirit-nav">
			
 
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				-</body>
			
 
				-</html>
			
--- a/doc/html/boost/array.html
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@@ -1,351 +0,0 @@
 
				-<html>
			
 
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				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Class template array</title>
			
 
				-<link rel="stylesheet" href="../boostbook.css" type="text/css">
			
 
				-<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
			
 
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				-<a name="boost.array"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template array</span></h2>
			
 
				-<p>boost::array &#8212; <p>STL compliant container wrapper for arrays of constant size</p></p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> array {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> T                                     value_type;            
			
 
				-  <span class="bold"><strong>typedef</strong></span> T*                                    iterator;              
			
 
				-  <span class="bold"><strong>typedef</strong></span> <span class="bold"><strong>const</strong></span> T*                              const_iterator;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> std::reverse_iterator&lt;iterator&gt;       reverse_iterator;      
			
 
				-  <span class="bold"><strong>typedef</strong></span> std::reverse_iterator&lt;const_iterator&gt; const_reverse_iterator;
			
 
				-  <span class="bold"><strong>typedef</strong></span> T&amp;                                    reference;             
			
 
				-  <span class="bold"><strong>typedef</strong></span> <span class="bold"><strong>const</strong></span> T&amp;                              const_reference;       
			
 
				-  <span class="bold"><strong>typedef</strong></span> std::size_t                           size_type;             
			
 
				-  <span class="bold"><strong>typedef</strong></span> std::ptrdiff_t                        difference_type;       
			
 
				-
			
 
				-  <span class="emphasis"><em>// static constants</em></span>
			
 
				-  <span class="bold"><strong>static</strong></span> <span class="bold"><strong>const</strong></span> size_type static_size = N;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="array.html#boost.arrayconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> U&gt; array&amp; <a href="array.html#id697625-bb"><span class="bold"><strong>operator</strong></span>=</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;U, N&gt;&amp;);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="array.html#id689734-bb">iterator support</a></em></span>
			
 
				-  <span class="type">iterator</span> <a href="array.html#id725473-bb">begin</a>();
			
 
				-  <span class="type">const_iterator</span> <a href="array.html#id656084-bb">begin</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">iterator</span> <a href="array.html#id684939-bb">end</a>();
			
 
				-  <span class="type">const_iterator</span> <a href="array.html#id721093-bb">end</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="array.html#id661089-bb">reverse iterator support</a></em></span>
			
 
				-  <span class="type">reverse_iterator</span> <a href="array.html#id733347-bb">rbegin</a>();
			
 
				-  <span class="type">const_reverse_iterator</span> <a href="array.html#id759984-bb">rbegin</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">reverse_iterator</span> <a href="array.html#id728793-bb">rend</a>();
			
 
				-  <span class="type">const_reverse_iterator</span> <a href="array.html#id692037-bb">rend</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="array.html#id727882-bb">capacity</a></em></span>
			
 
				-  <span class="type">size_type</span> <a href="array.html#id686133-bb">size</a>();
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id751779-bb">empty</a>();
			
 
				-  <span class="type">size_type</span> <a href="array.html#id686623-bb">max_size</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="array.html#id379518-bb">element access</a></em></span>
			
 
				-  <span class="type">reference</span> <a href="array.html#id686789-bb"><span class="bold"><strong>operator</strong></span>[]</a>(size_type);
			
 
				-  <span class="type">const_reference</span> <a href="array.html#id752140-bb"><span class="bold"><strong>operator</strong></span>[]</a>(size_type) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">reference</span> <a href="array.html#id689442-bb">at</a>(size_type);
			
 
				-  <span class="type">const_reference</span> <a href="array.html#id682666-bb">at</a>(size_type) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">reference</span> <a href="array.html#id763244-bb">front</a>();
			
 
				-  <span class="type">const_reference</span> <a href="array.html#id763251-bb">front</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">reference</span> <a href="array.html#id763276-bb">back</a>();
			
 
				-  <span class="type">const_reference</span> <a href="array.html#id763283-bb">back</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>const</strong></span> T*</span> <a href="array.html#id763305-bb">data</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">T*</span> <a href="array.html#id763323-bb">c_array</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="array.html#id763341-bb">modifiers</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="array.html#id763345-bb">swap</a>(<a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="array.html#id763383-bb">assign</a>(<span class="bold"><strong>const</strong></span> T&amp;);
			
 
				-
			
 
				-  T elems[N];
			
 
				-};
			
 
				-
			
 
				-<span class="emphasis"><em>// <a href="array.html#id763417-bb">specialized algorithms</a></em></span>
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="array.html#id763420">swap</a>(<a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-
			
 
				-<span class="emphasis"><em>// <a href="array.html#id763475-bb">comparisons</a></em></span>
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id763478"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id763537"><span class="bold"><strong>operator</strong></span>!=</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id763586"><span class="bold"><strong>operator</strong></span>&lt;</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id763648"><span class="bold"><strong>operator</strong></span>&gt;</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id763696"><span class="bold"><strong>operator</strong></span>&lt;=</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="array.html#id763744"><span class="bold"><strong>operator</strong></span>&gt;=</a>(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp;);</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id973340"></a><h2>Description</h2>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id973343"></a><h3>
			
 
				-<a name="boost.arrayconstruct-copy-destruct"></a><code class="computeroutput">array</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> U&gt; array&amp; <a name="id697625-bb"></a><span class="bold"><strong>operator</strong></span>=(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;U, N&gt;&amp; other);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::copy(rhs.<a href="array.html#id685681-bb">begin</a>(),rhs.<a href="array.html#id732428-bb">end</a>(), <a href="array.html#id685681-bb">begin</a>())</code></p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id973441"></a><h3>
			
 
				-<a name="id689734-bb"></a><code class="computeroutput">array</code> iterator support</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p><a name="id685681-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">iterator</span> <a name="id725473-bb"></a>begin();
			
 
				-<span class="type">const_iterator</span> <a name="id656084-bb"></a>begin() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    iterator for the first element<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="id732428-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">iterator</span> <a name="id684939-bb"></a>end();
			
 
				-<span class="type">const_iterator</span> <a name="id721093-bb"></a>end() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    iterator for position after the last element<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id973564"></a><h3>
			
 
				-<a name="id661089-bb"></a><code class="computeroutput">array</code> reverse iterator support</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p><a name="id727479-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">reverse_iterator</span> <a name="id733347-bb"></a>rbegin();
			
 
				-<span class="type">const_reverse_iterator</span> <a name="id759984-bb"></a>rbegin() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    reverse iterator for the first element of reverse iteration</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="id662500-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">reverse_iterator</span> <a name="id728793-bb"></a>rend();
			
 
				-<span class="type">const_reverse_iterator</span> <a name="id692037-bb"></a>rend() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    reverse iterator for position after the last element in reverse iteration</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id973674"></a><h3>
			
 
				-<a name="id727882-bb"></a><code class="computeroutput">array</code> capacity</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type">size_type</span> <a name="id686133-bb"></a>size();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">N</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id751779-bb"></a>empty();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">N==0</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type">size_type</span> <a name="id686623-bb"></a>max_size();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">N</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id973798"></a><h3>
			
 
				-<a name="id379518-bb"></a><code class="computeroutput">array</code> element access</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p><a name="id685146-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">reference</span> <a name="id686789-bb"></a><span class="bold"><strong>operator</strong></span>[](size_type i);
			
 
				-<span class="type">const_reference</span> <a name="id752140-bb"></a><span class="bold"><strong>operator</strong></span>[](size_type i) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Requires</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">i &lt; N</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    element with index <code class="computeroutput">i</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="id726524-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">reference</span> <a name="id689442-bb"></a>at(size_type i);
			
 
				-<span class="type">const_reference</span> <a name="id682666-bb"></a>at(size_type i) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    element with index <code class="computeroutput">i</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::range_error</code> if <code class="computeroutput">i &gt;= N</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="id763241-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">reference</span> <a name="id763244-bb"></a>front();
			
 
				-<span class="type">const_reference</span> <a name="id763251-bb"></a>front() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Requires</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">N &gt; 0</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    the first element<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="id763273-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="type">reference</span> <a name="id763276-bb"></a>back();
			
 
				-<span class="type">const_reference</span> <a name="id763283-bb"></a>back() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Requires</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">N &gt; 0</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    the last element<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>const</strong></span> T*</span> <a name="id763305-bb"></a>data() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">elems</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type">T*</span> <a name="id763323-bb"></a>c_array();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">elems</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id974166"></a><h3>
			
 
				-<a name="id763341-bb"></a><code class="computeroutput">array</code> modifiers</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id763345-bb"></a>swap(<a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; other);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::swap_ranges(<a href="array.html#id685681-bb">begin</a>(), <a href="array.html#id732428-bb">end</a>(), other.<a href="array.html#id685681-bb">begin</a>())</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Complexity</span></b>:
			
 
				-
			
 
				-    linear in <code class="computeroutput">N</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id763383-bb"></a>assign(<span class="bold"><strong>const</strong></span> T&amp; value);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::fill_n(<a href="array.html#id685681-bb">begin</a>(), N, value)</code></p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id974302"></a><h3>
			
 
				-<a name="id763417-bb"></a><code class="computeroutput">array</code> specialized algorithms</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; <span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id763420"></a>swap(<a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">x.<a href="array.html#id763345-bb">swap</a>(y)</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    will not throw.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id974394"></a><h3>
			
 
				-<a name="id763475-bb"></a><code class="computeroutput">array</code> comparisons</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id763478"></a><span class="bold"><strong>operator</strong></span>==(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::equal(x.<a href="array.html#id685681-bb">begin</a>(), x.<a href="array.html#id732428-bb">end</a>(), y.<a href="array.html#id685681-bb">begin</a>())</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id763537"></a><span class="bold"><strong>operator</strong></span>!=(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">!(x == y)</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id763586"></a><span class="bold"><strong>operator</strong></span>&lt;(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">std::lexicographical_compare(x.<a href="array.html#id685681-bb">begin</a>(), x.<a href="array.html#id732428-bb">end</a>(), y.<a href="array.html#id685681-bb">begin</a>(), y.<a href="array.html#id732428-bb">end</a>())</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id763648"></a><span class="bold"><strong>operator</strong></span>&gt;(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">y &lt; x</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id763696"></a><span class="bold"><strong>operator</strong></span>&lt;=(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">!(y &lt; x)</code></p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, std::size_t N&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id763744"></a><span class="bold"><strong>operator</strong></span>&gt;=(<span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; x, <span class="bold"><strong>const</strong></span> <a href="array.html" title="Class template array">array</a>&lt;T, N&gt;&amp; y);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">!(x &lt; y)</code></p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2004 Nicolai M. Josuttis</small></td>
			
 
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				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Class template date</title>
			
 
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				-<link rel="start" href="../../index.html" title="The Boost C++ Libraries">
			
 
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				-<a name="boost.date_time.date"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class template date</span></h2>
			
 
				-<p>boost::date_time::date &#8212; Representation of timepoint at the one day level resolution. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T, <span class="bold"><strong>typename</strong></span> calendar, <span class="bold"><strong>typename</strong></span> duration_type_&gt; 
			
 
				-<span class="bold"><strong>class</strong></span> date {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> T                          date_type;       
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar                   calendar_type;   
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::date_traits_type traits_type;     
			
 
				-  <span class="bold"><strong>typedef</strong></span> duration_type_             duration_type;   
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::year_type        year_type;       
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::month_type       month_type;      
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::day_type         day_type;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::ymd_type         ymd_type;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::date_rep_type    date_rep_type;   
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::date_int_type    date_int_type;   
			
 
				-  <span class="bold"><strong>typedef</strong></span> calendar::day_of_week_type day_of_week_type;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="date.html#boost.date_time.dateconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="date.html#id802112-bb">date</a>(year_type, month_type, day_type);
			
 
				-  <a href="date.html#id800062-bb">date</a>(<span class="bold"><strong>const</strong></span> ymd_type &amp;);
			
 
				-  <a href="date.html#id824446-bb">date</a>(date_int_type);
			
 
				-  <a href="date.html#id1047138-bb">date</a>(date_rep_type);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="date.html#id798032-bb">public member functions</a></em></span>
			
 
				-  <span class="type">year_type</span> <a href="date.html#id906201-bb">year</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">month_type</span> <a href="date.html#id872745-bb">month</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">day_type</span> <a href="date.html#id860779-bb">day</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">day_of_week_type</span> <a href="date.html#id908468-bb">day_of_week</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">ymd_type</span> <a href="date.html#id825616-bb">year_month_day</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id697902-bb"><span class="bold"><strong>operator</strong></span>&lt;</a>(<span class="bold"><strong>const</strong></span> date_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id865087-bb"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> date_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id939432-bb">is_special</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id834537-bb">is_not_a_date</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id1070079-bb">is_infinity</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id833077-bb">is_pos_infinity</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="date.html#id801744-bb">is_neg_infinity</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">special_values</span> <a href="date.html#id822819-bb">as_special</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">duration_type</span> <a href="date.html#id827653-bb"><span class="bold"><strong>operator</strong></span>-</a>(<span class="bold"><strong>const</strong></span> date_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">date_type</span> <a href="date.html#id831065-bb"><span class="bold"><strong>operator</strong></span>-</a>(<span class="bold"><strong>const</strong></span> duration_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">date_type</span> <a href="date.html#id1080637-bb"><span class="bold"><strong>operator</strong></span>-=</a>(<span class="bold"><strong>const</strong></span> duration_type &amp;) ;
			
 
				-  <span class="type">date_rep_type</span> <a href="date.html#id1104862-bb">day_count</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">date_type</span> <a href="date.html#id863577-bb"><span class="bold"><strong>operator</strong></span>+</a>(<span class="bold"><strong>const</strong></span> duration_type &amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">date_type</span> <a href="date.html#id1102041-bb"><span class="bold"><strong>operator</strong></span>+=</a>(<span class="bold"><strong>const</strong></span> duration_type &amp;) ;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="date.html#id824441-bb">protected member functions</a></em></span>
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1041062"></a><h2>Description</h2>
			
 
				-<p>The date template represents an interface shell for a date class that is based on a year-month-day system such as the gregorian or iso systems. It provides basic operations to enable calculation and comparisons.</p>
			
 
				-<p><span class="bold"><strong>Theory</strong></span></p>
			
 
				-<p>This date representation fundamentally departs from the C tm struct approach. The goal for this type is to provide efficient date operations (add, subtract) and storage (minimize space to represent) in a concrete class. Thus, the date uses a count internally to represent a particular date. The calendar parameter defines the policies for converting the the year-month-day and internal counted form here. Applications that need to perform heavy formatting of the same date repeatedly will perform better by using the year-month-day representation.</p>
			
 
				-<p>Internally the date uses a day number to represent the date. This is a monotonic time representation. This representation allows for fast comparison as well as simplifying the creation of writing numeric operations. Essentially, the internal day number is like adjusted julian day. The adjustment is determined by the Epoch date which is represented as day 1 of the calendar. Day 0 is reserved for negative infinity so that any actual date is automatically greater than negative infinity. When a date is constructed from a date or formatted for output, the appropriate conversions are applied to create the year, month, day representations. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1041081"></a><h3>
			
 
				-<a name="boost.date_time.dateconstruct-copy-destruct"></a><code class="computeroutput">date</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id802112-bb"></a>date(year_type y, month_type m, day_type d);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id800062-bb"></a>date(<span class="bold"><strong>const</strong></span> ymd_type &amp; ymd);</pre></li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id824446-bb"></a>date(date_int_type days);</pre>
			
 
				-<p>This is a private constructor which allows for the creation of new dates. It is not exposed to users since that would require class users to understand the inner workings of the date class. </p>
			
 
				-</li>
			
 
				-<li><pre class="literallayout"><a name="id1047138-bb"></a>date(date_rep_type days);</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1041167"></a><h3>
			
 
				-<a name="id798032-bb"></a><code class="computeroutput">date</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><span class="type">year_type</span> <a name="id906201-bb"></a>year() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">month_type</span> <a name="id872745-bb"></a>month() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">day_type</span> <a name="id860779-bb"></a>day() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">day_of_week_type</span> <a name="id908468-bb"></a>day_of_week() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">ymd_type</span> <a name="id825616-bb"></a>year_month_day() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id697902-bb"></a><span class="bold"><strong>operator</strong></span>&lt;(<span class="bold"><strong>const</strong></span> date_type &amp; rhs) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id865087-bb"></a><span class="bold"><strong>operator</strong></span>==(<span class="bold"><strong>const</strong></span> date_type &amp; rhs) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id939432-bb"></a>is_special() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id834537-bb"></a>is_not_a_date() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id1070079-bb"></a>is_infinity() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id833077-bb"></a>is_pos_infinity() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id801744-bb"></a>is_neg_infinity() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">special_values</span> <a name="id822819-bb"></a>as_special() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">duration_type</span> <a name="id827653-bb"></a><span class="bold"><strong>operator</strong></span>-(<span class="bold"><strong>const</strong></span> date_type &amp; d) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">date_type</span> <a name="id831065-bb"></a><span class="bold"><strong>operator</strong></span>-(<span class="bold"><strong>const</strong></span> duration_type &amp; dd) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">date_type</span> <a name="id1080637-bb"></a><span class="bold"><strong>operator</strong></span>-=(<span class="bold"><strong>const</strong></span> duration_type &amp; dd) ;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">date_rep_type</span> <a name="id1104862-bb"></a>day_count() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">date_type</span> <a name="id863577-bb"></a><span class="bold"><strong>operator</strong></span>+(<span class="bold"><strong>const</strong></span> duration_type &amp; dd) <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">date_type</span> <a name="id1102041-bb"></a><span class="bold"><strong>operator</strong></span>+=(<span class="bold"><strong>const</strong></span> duration_type &amp; dd) ;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1041700"></a><h3>
			
 
				-<a name="id824441-bb"></a><code class="computeroutput">date</code> protected member functions</h3>
			
 
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				-<h2><span class="refentrytitle">Class template function</span></h2>
			
 
				-<p>boost::function &#8212; A generalized function pointer that can be used for
			
 
				-    callbacks or wrapping function objects.</p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="emphasis"><em>  // Function type R (T1, T2, ..., TN)</em></span>
			
 
				-         <span class="bold"><strong>typename</strong></span> Allocator = std::allocator&lt;<span class="bold"><strong>void</strong></span>&gt; &gt; 
			
 
				-<span class="bold"><strong>class</strong></span> function : <span class="bold"><strong>public</strong></span> <a href="../functionN.html" title="Class template functionN">functionN</a>&lt;R, T1, T2, ..., TN, Allocator&gt; {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> R         result_type;         
			
 
				-  <span class="bold"><strong>typedef</strong></span> Allocator allocator_type;      
			
 
				-  <span class="bold"><strong>typedef</strong></span> T1        argument_type;         <span class="emphasis"><em>// If N == 1</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> T1        first_argument_type;   <span class="emphasis"><em>// If N == 2</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> T2        second_argument_type;  <span class="emphasis"><em>// If N == 2</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> T1        arg1_type;           
			
 
				-  <span class="bold"><strong>typedef</strong></span> T2        arg2_type;           
			
 
				-     .
			
 
				-     .
			
 
				-     .
			
 
				-  <span class="bold"><strong>typedef</strong></span> TN        argN_type;           
			
 
				-
			
 
				-  <span class="emphasis"><em>// static constants</em></span>
			
 
				-  <span class="bold"><strong>static</strong></span> <span class="bold"><strong>const</strong></span> <span class="bold"><strong>int</strong></span> arity = N;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="../lambda.html" title="Chapter 6. Boost.Lambda">Lambda</a> library support</em></span>
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Args&gt; 
			
 
				-  <span class="bold"><strong>struct</strong></span> sig {
			
 
				-    <span class="emphasis"><em>// types</em></span>
			
 
				-    <span class="bold"><strong>typedef</strong></span> result_type type;
			
 
				-  };
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="function.html#boost.functionconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="function.html#id1031759-bb">function</a>();
			
 
				-  <a href="function.html#id1046556-bb">function</a>(<span class="bold"><strong>const</strong></span> <a href="../functionN.html" title="Class template functionN">functionN</a>&amp;);
			
 
				-  <a href="function.html#id1070102-bb">function</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&amp;);
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> F&gt; <a href="function.html#id835586-bb">function</a>(F);
			
 
				-  function&amp; <a href="function.html#id800435-bb"><span class="bold"><strong>operator</strong></span>=</a>(<span class="bold"><strong>const</strong></span> <a href="../functionN.html" title="Class template functionN">functionN</a>&amp;);
			
 
				-  function&amp; <a href="function.html#id1077825-bb"><span class="bold"><strong>operator</strong></span>=</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&amp;);
			
 
				-  <a href="function.html#id870390-bb">~function</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="function.html#id1073652-bb">modifiers</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="function.html#id801534-bb">swap</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&amp;);
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="function.html#id903961-bb">clear</a>();
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="function.html#id1112252-bb">capacity</a></em></span>
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id972567-bb">empty</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <a href="function.html#id1106579-bb"><span class="bold"><strong>operator</strong></span> safe_bool</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id1106977-bb"><span class="bold"><strong>operator</strong></span>!</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="function.html#id970210-bb">target access</a></em></span>
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Functor&gt; <span class="type">Functor*</span> <a href="function.html#id1037337-bb">target</a>();
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Functor&gt; <span class="type"><span class="bold"><strong>const</strong></span> Functor*</span> <a href="function.html#id1003205-bb">target</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Functor&gt; <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id899187-bb">contains</a>(<span class="bold"><strong>const</strong></span> Functor&amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="function.html#id1000460-bb">invocation</a></em></span>
			
 
				-  <span class="type">result_type</span> <a href="function.html#id966548-bb"><span class="bold"><strong>operator</strong></span>()</a>(arg1_type, arg2_type, ..., argN_type) <span class="bold"><strong>const</strong></span>;
			
 
				-};
			
 
				-
			
 
				-<span class="emphasis"><em>// <a href="function.html#id996764-bb">specialized algorithms</a></em></span>
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="function.html#id999224">swap</a>(<a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;, <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;);
			
 
				-
			
 
				-<span class="emphasis"><em>// <a href="function.html#id894643-bb">comparison operators</a></em></span>
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id1012910-bb"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;, Functor);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id827744-bb"><span class="bold"><strong>operator</strong></span>==</a>(Functor, <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id937738-bb"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;, 
			
 
				-                  <a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id1107517-bb"><span class="bold"><strong>operator</strong></span>==</a>(<a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature1, <span class="bold"><strong>typename</strong></span> Allocator1, <span class="bold"><strong>typename</strong></span> Signature2, 
			
 
				-         <span class="bold"><strong>typename</strong></span> Allocator2&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="function.html#id835486-bb"><span class="bold"><strong>operator</strong></span>==</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature1, Allocator1&gt;&amp;, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature2, Allocator2&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id834162-bb"><span class="bold"><strong>operator</strong></span>!=</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;, Functor);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id961954-bb"><span class="bold"><strong>operator</strong></span>!=</a>(Functor, <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id867993-bb"><span class="bold"><strong>operator</strong></span>!=</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;, 
			
 
				-                  <a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="function.html#id1066866-bb"><span class="bold"><strong>operator</strong></span>!=</a>(<a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp;);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature1, <span class="bold"><strong>typename</strong></span> Allocator1, <span class="bold"><strong>typename</strong></span> Signature2, 
			
 
				-         <span class="bold"><strong>typename</strong></span> Allocator2&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a href="function.html#id966586-bb"><span class="bold"><strong>operator</strong></span>!=</a>(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature1, Allocator1&gt;&amp;, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature2, Allocator2&gt;&amp;);</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1212219"></a><h2>Description</h2>
			
 
				-<p>Class template <a href="function.html" title="Class template function">function</a> is a thin
			
 
				-      wrapper around the numbered class templates <a href="../functionN.html" title="Class template functionN">function0</a>, <a href="../functionN.html" title="Class template functionN">function1</a>, etc. It accepts a
			
 
				-      function type with N arguments and will will derive from
			
 
				-      <a href="../functionN.html" title="Class template functionN">functionN</a> instantiated with the arguments
			
 
				-      it receives.</p>
			
 
				-<p>The semantics of all operations in class template
			
 
				-      <a href="function.html" title="Class template function">function</a> are equivalent to that of the
			
 
				-      underlying <a href="../functionN.html" title="Class template functionN">functionN</a> object, although
			
 
				-      additional member functions are required to allow proper copy
			
 
				-      construction and copy assignment of function objects.</p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1212276"></a><h3>
			
 
				-<a name="boost.functionconstruct-copy-destruct"></a><code class="computeroutput">function</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1031759-bb"></a>function();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">this-&gt;<a href="function.html#id972567-bb">empty</a>()</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1046556-bb"></a>function(<span class="bold"><strong>const</strong></span> <a href="../functionN.html" title="Class template functionN">functionN</a>&amp; f);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    Contains a copy of the <code class="computeroutput">f</code>'s target, if it has one, or is empty if <code class="computeroutput">f.<a href="function.html#id972567-bb">empty</a>()</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw unless copying the target of <code class="computeroutput">f</code> throws.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1070102-bb"></a>function(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&amp; f);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    Contains a copy of the <code class="computeroutput">f</code>'s target, if it has one, or is empty if <code class="computeroutput">f.<a href="function.html#id972567-bb">empty</a>()</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw unless copying the target of <code class="computeroutput">f</code> throws.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> F&gt; <a name="id835586-bb"></a>function(F f);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Requires</span></b>:
			
 
				-
			
 
				-    F is a function object Callable from <code class="computeroutput">this</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">*this</code> targets a copy of <code class="computeroutput">f</code> if <code class="computeroutput">f</code> is nonempty, or <code class="computeroutput">this-&gt;<a href="function.html#id972567-bb">empty</a>()</code> if <code class="computeroutput">f</code> is empty.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw when <code class="computeroutput">f</code> is a stateless function object.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout">function&amp; <a name="id800435-bb"></a><span class="bold"><strong>operator</strong></span>=(<span class="bold"><strong>const</strong></span> <a href="../functionN.html" title="Class template functionN">functionN</a>&amp; f);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">*this</code> targets a copy of <code class="computeroutput">f</code>'s target, if it has one, or is empty if <code class="computeroutput">f.<a href="function.html#id972567-bb">empty</a>()</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw when the target of <code class="computeroutput">f</code> is a stateless function object or a reference to the function object.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout">function&amp; <a name="id1077825-bb"></a><span class="bold"><strong>operator</strong></span>=(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&amp; f);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">*this</code> targets a copy of <code class="computeroutput">f</code>'s target, if it has one, or is empty if <code class="computeroutput">f.<a href="function.html#id972567-bb">empty</a>()</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw when the target of <code class="computeroutput">f</code> is a stateless function object or a reference to the function object.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id870390-bb"></a>~function();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    If <code class="computeroutput">!this-&gt;<a href="function.html#id972567-bb">empty</a>()</code>, destroys the target of <code class="computeroutput">this</code>.</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1212765"></a><h3>
			
 
				-<a name="id1073652-bb"></a><code class="computeroutput">function</code> modifiers</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id801534-bb"></a>swap(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&amp; f);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    Interchanges the targets of <code class="computeroutput">*this</code> and <code class="computeroutput">f</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id903961-bb"></a>clear();</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Postconditions</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">this-&gt;<a href="function.html#id972567-bb">empty</a>()</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1212892"></a><h3>
			
 
				-<a name="id1112252-bb"></a><code class="computeroutput">function</code> capacity</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id972567-bb"></a>empty() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">false</code> if <code class="computeroutput">this</code> has a target, and <code class="computeroutput">true</code> otherwise.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><a name="id1106579-bb"></a><span class="bold"><strong>operator</strong></span> safe_bool() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    A <code class="computeroutput">safe_bool</code> that evaluates <code class="computeroutput">false</code> in a boolean context when <code class="computeroutput">this-&gt;<a href="function.html#id972567-bb">empty</a>()</code>, and <code class="computeroutput">true</code> otherwise.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id1106977-bb"></a><span class="bold"><strong>operator</strong></span>!() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">this-&gt;<a href="function.html#id972567-bb">empty</a>()</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1213098"></a><h3>
			
 
				-<a name="id970210-bb"></a><code class="computeroutput">function</code> target access</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p><a name="id692435-bb"></a></p>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Functor&gt; <span class="type">Functor*</span> <a name="id1037337-bb"></a>target();
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Functor&gt; <span class="type"><span class="bold"><strong>const</strong></span> Functor*</span> <a name="id1003205-bb"></a>target() <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    If <code class="computeroutput">this</code> stores a target of type
			
 
				-        <code class="computeroutput">Functor</code>, returns the address of the
			
 
				-        target. Otherwise, returns the NULL
			
 
				-        pointer.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Functor&gt; <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id899187-bb"></a>contains(<span class="bold"><strong>const</strong></span> Functor&amp; f) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">true</code> if <code class="computeroutput">this-&gt;<a href="function.html#id692435-bb">target</a>&lt;Functor&gt;()</code> is non-NULL and <code class="computeroutput"><a href="../function_equal.html" title="Function template function_equal">function_equal</a>(*(this-&gt;target&lt;Functor&gt;()), f)</code></p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1213293"></a><h3>
			
 
				-<a name="id1000460-bb"></a><code class="computeroutput">function</code> invocation</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="type">result_type</span> <a name="id966548-bb"></a><span class="bold"><strong>operator</strong></span>()(arg1_type a1, arg2_type a2, ... , argN_type aN) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">f(a1, a2, ..., aN)</code>, where <code class="computeroutput">f</code> is the target of <code class="computeroutput">*this</code>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    if <code class="computeroutput">R</code> is <code class="computeroutput">void</code>, nothing is returned; otherwise, the return value of the call to <code class="computeroutput">f</code> is returned.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput"><a href="../bad_function_call.html" title="Class bad_function_call">bad_function_call</a></code> if <code class="computeroutput">!this-&gt;<a href="function.html#id972567-bb">empty</a>()</code>. Otherwise, may through any exception thrown by the target function <code class="computeroutput">f</code>.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1213425"></a><h3>
			
 
				-<a name="id996764-bb"></a><code class="computeroutput">function</code> specialized algorithms</h3>
			
 
				-<div class="orderedlist"><ol type="1"><li>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id999224"></a>swap(<a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f1, 
			
 
				-            <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f2);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Effects</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput">f1.<a href="function.html#id801534-bb">swap</a>(f2)</code><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    Will not throw.</p>
			
 
				-</li></ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1213524"></a><h3>
			
 
				-<a name="id894643-bb"></a><code class="computeroutput">function</code> comparison operators</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li>
			
 
				-<p><a name="id1075930"></a></p>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id1012910-bb"></a><span class="bold"><strong>operator</strong></span>==(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f, Functor g);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id827744-bb"></a><span class="bold"><strong>operator</strong></span>==(Functor g, <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id937738-bb"></a><span class="bold"><strong>operator</strong></span>==(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f, 
			
 
				-                  <a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt; g);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id1107517-bb"></a><span class="bold"><strong>operator</strong></span>==(<a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt; g, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature1, <span class="bold"><strong>typename</strong></span> Allocator1, <span class="bold"><strong>typename</strong></span> Signature2, 
			
 
				-         <span class="bold"><strong>typename</strong></span> Allocator2&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id835486-bb"></a><span class="bold"><strong>operator</strong></span>==(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature1, Allocator1&gt;&amp; f1, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature2, Allocator2&gt;&amp; f2);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    True when <code class="computeroutput">f</code> stores an object of
			
 
				-        type <code class="computeroutput">Functor</code> and one of the following conditions applies:
			
 
				-          <div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<code class="computeroutput">g</code> is of type
			
 
				-            <code class="computeroutput"><a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;</code>
			
 
				-            and <code class="computeroutput">f.target&lt;Functor&gt;() == g.<a href="../reference_wrapper.html#id656887-bb">get_pointer</a>()</code>.</li>
			
 
				-<li>
			
 
				-<code class="computeroutput">g</code> is not of type
			
 
				-            <code class="computeroutput"><a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;</code>
			
 
				-            and <code class="computeroutput">function_equals(*(f.target&lt;Functor&gt;()), g)</code>.</li>
			
 
				-</ul></div><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Notes</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput"><a href="function.html" title="Class template function">function</a></code>
			
 
				-        objects are not
			
 
				-        <a href="../EqualityComparable.html" title="Concept EqualityComparable">EqualityComparable</a>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Rationale</span></b>:
			
 
				-
			
 
				-    The <code class="computeroutput">safe_bool</code> conversion
			
 
				-        opens a loophole whereby two <code class="computeroutput">function</code>
			
 
				-        instances can be compared via <code class="computeroutput">==</code>, although this
			
 
				-        is not feasible to implement. The undefined <code class="computeroutput">void
			
 
				-        operator==</code> closes the loophole and ensures a
			
 
				-        compile-time or link-time error.</p>
			
 
				-</li>
			
 
				-<li>
			
 
				-<p><a name="id1066261"></a></p>
			
 
				-<pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id834162-bb"></a><span class="bold"><strong>operator</strong></span>!=(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f, Functor g);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id961954-bb"></a><span class="bold"><strong>operator</strong></span>!=(Functor g, <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id867993-bb"></a><span class="bold"><strong>operator</strong></span>!=(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f, 
			
 
				-                  <a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt; g);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature, <span class="bold"><strong>typename</strong></span> Allocator, <span class="bold"><strong>typename</strong></span> Functor&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id1066866-bb"></a><span class="bold"><strong>operator</strong></span>!=(<a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt; g, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature, Allocator&gt;&amp; f);
			
 
				-<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Signature1, <span class="bold"><strong>typename</strong></span> Allocator1, <span class="bold"><strong>typename</strong></span> Signature2, 
			
 
				-         <span class="bold"><strong>typename</strong></span> Allocator2&gt; 
			
 
				-  <span class="type"><span class="bold"><strong>void</strong></span></span> <a name="id966586-bb"></a><span class="bold"><strong>operator</strong></span>!=(<span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature1, Allocator1&gt;&amp; f1, 
			
 
				-                  <span class="bold"><strong>const</strong></span> <a href="function.html" title="Class template function">function</a>&lt;Signature2, Allocator2&gt;&amp; f2);</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    True when <code class="computeroutput">f</code> does not store an
			
 
				-        object of type <code class="computeroutput">Functor</code> or it stores an object of
			
 
				-        type <code class="computeroutput">Functor</code> and one of the following conditions
			
 
				-        applies:
			
 
				-          <div class="itemizedlist"><ul type="disc">
			
 
				-<li>
			
 
				-<code class="computeroutput">g</code> is of type
			
 
				-            <code class="computeroutput"><a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;</code>
			
 
				-            and <code class="computeroutput">f.target&lt;Functor&gt;() != g.<a href="../reference_wrapper.html#id656887-bb">get_pointer</a>()</code>.</li>
			
 
				-<li>
			
 
				-<code class="computeroutput">g</code> is not of type
			
 
				-            <code class="computeroutput"><a href="../reference_wrapper.html" title="Class template reference_wrapper">reference_wrapper</a>&lt;Functor&gt;</code>
			
 
				-            and <code class="computeroutput">!function_equals(*(f.target&lt;Functor&gt;()), g)</code>.</li>
			
 
				-</ul></div><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Notes</span></b>:
			
 
				-
			
 
				-    <code class="computeroutput"><a href="function.html" title="Class template function">function</a></code>
			
 
				-        objects are not
			
 
				-        <a href="../EqualityComparable.html" title="Concept EqualityComparable">EqualityComparable</a>.<br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Rationale</span></b>:
			
 
				-
			
 
				-    The <code class="computeroutput">safe_bool</code> conversion
			
 
				-        opens a loophole whereby two <code class="computeroutput">function</code>
			
 
				-        instances can be compared via <code class="computeroutput">!=</code>, although this
			
 
				-        is not feasible to implement. The undefined <code class="computeroutput">void
			
 
				-        operator!=</code> closes the loophole and ensures a
			
 
				-        compile-time or link-time error.</p>
			
 
				-</li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
				-<td align="left"></td>
			
 
				-<td align="right"><small>Copyright © 2001-2004 Douglas Gregor</small></td>
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="boost.gregorian.date"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Class date</span></h2>
			
 
				-<p>boost::gregorian::date &#8212; A date type based on gregorian_calendar. </p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
			
 
				-<span class="bold"><strong>class</strong></span> date {
			
 
				-<span class="bold"><strong>public</strong></span>:
			
 
				-  <span class="emphasis"><em>// types</em></span>
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::year_type        year_type;       
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::month_type       month_type;      
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::day_type         day_type;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::day_of_year_type day_of_year_type;
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::ymd_type         ymd_type;        
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::date_rep_type    date_rep_type;   
			
 
				-  <span class="bold"><strong>typedef</strong></span> gregorian_calendar::date_int_type    date_int_type;   
			
 
				-  <span class="bold"><strong>typedef</strong></span> date_duration                        duration_type;   
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="date.html#boost.gregorian.dateconstruct-copy-destruct">construct/copy/destruct</a></em></span>
			
 
				-  <a href="date.html#id965039-bb">date</a>();
			
 
				-  <a href="date.html#id1108828-bb">date</a>(year_type, month_type, day_type);
			
 
				-  <a href="date.html#id837863-bb">date</a>(<span class="bold"><strong>const</strong></span> ymd_type &amp;);
			
 
				-  <a href="date.html#id936851-bb">date</a>(<span class="bold"><strong>const</strong></span> date_int_type &amp;);
			
 
				-  <a href="date.html#id835710-bb">date</a>(date_rep_type);
			
 
				-  <a href="date.html#id835729-bb">date</a>(special_values);
			
 
				-
			
 
				-  <span class="emphasis"><em>// <a href="date.html#id1109300-bb">public member functions</a></em></span>
			
 
				-  <span class="type">date_int_type</span> <a href="date.html#id868803-bb">julian_day</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">day_of_year_type</span> <a href="date.html#id868820-bb">day_of_year</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>long</strong></span></span> <a href="date.html#id798683-bb">modjulian_day</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><span class="bold"><strong>int</strong></span></span> <a href="date.html#id1036065-bb">week_number</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type">date_int_type</span> <a href="date.html#id1031184-bb">day_number</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-  <span class="type"><a href="date.html" title="Class date">date</a></span> <a href="date.html#id908610-bb">end_of_month</a>() <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1150185"></a><h2>Description</h2>
			
 
				-<p>This class is the primary interface for programming with greogorian dates. The is a lightweight type that can be freely passed by value. All comparison operators are supported. </p>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1150194"></a><h3>
			
 
				-<a name="boost.gregorian.dateconstruct-copy-destruct"></a><code class="computeroutput">date</code> construct/copy/destruct</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><a name="id965039-bb"></a>date();</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id1108828-bb"></a>date(year_type y, month_type m, day_type d);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id837863-bb"></a>date(<span class="bold"><strong>const</strong></span> ymd_type &amp; ymd);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id936851-bb"></a>date(<span class="bold"><strong>const</strong></span> date_int_type &amp; rhs);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id835710-bb"></a>date(date_rep_type rhs);</pre></li>
			
 
				-<li><pre class="literallayout"><a name="id835729-bb"></a>date(special_values sv);</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-<div class="refsect2" lang="en">
			
 
				-<a name="id1150306"></a><h3>
			
 
				-<a name="id1109300-bb"></a><code class="computeroutput">date</code> public member functions</h3>
			
 
				-<div class="orderedlist"><ol type="1">
			
 
				-<li><pre class="literallayout"><span class="type">date_int_type</span> <a name="id868803-bb"></a>julian_day() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">day_of_year_type</span> <a name="id868820-bb"></a>day_of_year() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>long</strong></span></span> <a name="id798683-bb"></a>modjulian_day() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><span class="bold"><strong>int</strong></span></span> <a name="id1036065-bb"></a>week_number() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type">date_int_type</span> <a name="id1031184-bb"></a>day_number() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-<li><pre class="literallayout"><span class="type"><a href="date.html" title="Class date">date</a></span> <a name="id908610-bb"></a>end_of_month() <span class="bold"><strong>const</strong></span>;</pre></li>
			
 
				-</ol></div>
			
 
				-</div>
			
 
				-</div>
			
 
				-</div>
			
 
				-<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
			
 
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				-</html>
			
--- a/doc/html/boost/hash.html
+++ b/doc/html/boost/hash.html
@@ -1,64 +0,0 @@
 
				-<html>
			
 
				-<head>
			
 
				-<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
			
 
				-<title>Struct template hash</title>
			
 
				-<link rel="stylesheet" href="../boostbook.css" type="text/css">
			
 
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				-<link rel="start" href="../index.html" title="The Boost C++ Libraries">
			
 
				-<link rel="up" href="../hash/reference_.html#id1082064" title="Header &lt;boost/functional/hash/hash.hpp&gt;">
			
 
				-<link rel="prev" href="../hash/reference_.html" title=" Reference">
			
 
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				-<div class="refentry" lang="en">
			
 
				-<a name="boost.hash"></a><div class="titlepage"></div>
			
 
				-<div class="refnamediv">
			
 
				-<h2><span class="refentrytitle">Struct template hash</span></h2>
			
 
				-<p>boost::hash &#8212; An STL compliant hash function object.</p>
			
 
				-</div>
			
 
				-<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
			
 
				-<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> T&gt; 
			
 
				-<span class="bold"><strong>struct</strong></span> hash : <span class="bold"><strong>public</strong></span> std::unary_function&lt;T, std::size_t&gt; {
			
 
				-  <span class="type">std::size_t</span> <a href="hash.html#id1074553-bb"><span class="bold"><strong>operator</strong></span>()</a>(T <span class="bold"><strong>const</strong></span>&amp;) <span class="bold"><strong>const</strong></span>;
			
 
				-};</pre></div>
			
 
				-<div class="refsect1" lang="en">
			
 
				-<a name="id1219961"></a><h2>Description</h2>
			
 
				-<pre class="literallayout"><span class="type">std::size_t</span> <a name="id1074553-bb"></a><span class="bold"><strong>operator</strong></span>()(T <span class="bold"><strong>const</strong></span>&amp; val) <span class="bold"><strong>const</strong></span>;</pre>
			
 
				-<p><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Returns</span></b>:
			
 
				-
			
 
				-    <pre class="programlisting"><a href="../id1042434.html" title="Function hash_value">hash_value</a>(val)</pre><br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Notes</span></b>:
			
 
				-
			
 
				-    
			
 
				-            The call to <code class="computeroutput"><a href="../id1042434.html" title="Function hash_value">hash_value</a></code>
			
 
				-            is unqualified, so that custom overloads can be
			
 
				-            found via argument dependent lookup.
			
 
				-          <br><b xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision"><span class="term">Throws</span></b>:
			
 
				-
			
 
				-    
			
 
				-            Only throws if
			
 
				-            <code class="computeroutput"><a href="../id1042434.html" title="Function hash_value">hash_value</a>(T)</code> throws.
			
 
				-          </p>
			
 
				-</div>
			
 
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				-<td align="left"></td>
			
 
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